test(account): cover missing picker business date

.agents/PROJECT_PLAN.md

@@ -55,7 +55,6 @@ Conflict-prevention rules:
 
 - `work/platform` owns `src/main/resources/db/migration/**`, Maven/dependency configuration, Compose, container build files, and CI workflow files. Other branches request schema changes instead of independently allocating migration versions.
 - `work/reports-ui` owns shared templates/fragments, shared design tokens, and general UI assets. Each domain branch owns its module-specific controllers and pages while consuming those shared fragments.
-- A targeted repair shall use a clean, isolated `work/fix/<feature>/<what-fix>` branch and worktree from the taskmaster-verified current `main`. Do not use `work/<feature>/fix/<what-fix>`: the persistent `work/<feature>` ref already occupies that Git ref prefix.
 - `work/tasks` exposes focused Task query/transfer operations required by Project workflows. `work/projects` owns the transaction that removes a member or completes a Project.
 - `work/platform` owns HolidayAPI credential storage and the tested HTTP client. `work/attendance` owns preview interpretation, selection, deduplication, import, and day-off effects.
 - Attendance time and Task work time remain separate. No branch may make one mutate or prove the other.

.agents/skills/orchestrate-labtimesheet-iteration/SKILL.md

@@ -70,11 +70,6 @@ Use exactly these persistent branches unless the user changes the plan:
 | `work/attendance` | Policy, calendar, attendance, corrections, leave, metrics |
 | `work/reports-ui` | Shared Thymeleaf UI, dashboards, reports, exports |
 
-For a targeted repair outside the next iteration, create a clean isolated
-`work/fix/<feature>/<what-fix>` worktree from the taskmaster-verified current
-`main`. Do not use `work/<feature>/fix/<what-fix>`: the persistent
-`work/<feature>` ref already occupies that Git ref prefix.
-
 Create one isolated worktree per branch. Give each implementation agent explicit ownership, tell it other agents share the repository, forbid reverting others' work, require medium-milestone local commits, and forbid push unless separately authorized.
 
 Before any owner edits its module, require it to:

AGENTS.md

@@ -120,7 +120,6 @@ For a multi-branch iteration:
 
 - Use one worktree and one named owner/subagent per branch. Tell every owner that other agents share the repository and it must not revert others' work.
 - Before starting assigned module work, every owner verifies its worktree is clean, fetches or uses the taskmaster-verified latest `main`, and fast-forwards its persistent branch to that exact main SHA. Do not build new work on a stale pre-integration branch, and do not use a merge that would rewrite or discard branch history.
-- A targeted repair uses a clean, isolated `work/fix/<feature>/<what-fix>` branch and worktree from the taskmaster-verified current `main`. Do not use `work/<feature>/fix/<what-fix>`: the persistent `work/<feature>` ref already occupies that Git ref prefix.
 - Establish and commit the platform foundation before dependent persistence work.
 - Exchange only full immutable SHAs from clean worktrees; never merge a moving branch or ambiguous short SHA.
 - Preserve branch ownership. Request a producer-owned service/DTO boundary instead of reading its tables from a consumer.

DEVELOPMENT.md

@@ -62,14 +62,6 @@ npm ci
 npm run build
 ```
 
-### Use an isolated repair branch
-
-For a targeted repair, start a clean worktree from the taskmaster-verified
-current `main` on `work/fix/<feature>/<what-fix>`. Keep it separate from the
-five persistent `work/<feature>` branches. Do not use
-`work/<feature>/fix/<what-fix>` because the persistent `work/<feature>` ref
-already occupies that Git ref prefix.
-
 ## 3. Start the development containers
 
 ### PostgreSQL 18.4

PRODUCT.md

@@ -79,7 +79,6 @@ The product joins attendance oversight and Project delivery without pretending t
 3. **Attendance and Project work stay distinct.** The product may report them together, but one never derives or proves the other.
 4. **Deadlines are enforced at every path.** Scheduled workers improve timeliness, while request-time guards preserve correctness when scheduling is late.
 5. **Prefer explicit, reviewable operations.** Feature-owned controller/service/repository flows, constrained state transitions, focused integrations, and shared report datasets serve clarity over speculative machinery.
-6. **Fixes preserve branch ownership.** A targeted repair uses a clean `work/fix/<feature>/<what-fix>` branch from verified `main`, not `work/<feature>/fix/<what-fix>`; persistent `work/<feature>` refs already occupy that Git ref prefix.
 
 ## Accessibility & Inclusion
 

README.md

@@ -126,12 +126,6 @@ companion record under [`docs/tests`](docs/tests/README.md).
 | `work/attendance` | Policy, calendar, attendance workflows |
 | `work/reports-ui` | Shared UI, dashboards, reporting presentation |
 
-For a targeted repair, create a clean isolated branch and worktree from the
-taskmaster-verified current `main` named
-`work/fix/<feature>/<what-fix>`. Do not nest it as
-`work/<feature>/fix/<what-fix>`: the persistent `work/<feature>` ref already
-uses that Git ref prefix.
-
 Iteration 2 work must start from the merged Iteration 1 `main`, continue with
 strict RED-to-GREEN TDD, add Javadoc during implementation, and update the
 matching Markdown evidence record before each milestone commit.

TESTING.md

@@ -120,12 +120,6 @@ Simple configuration or documentation changes use the smallest useful shell
 check, followed by the affected Maven suite. Do not create an artificial Java
 test only to check that a text file exists.
 
-Run that check from the clean targeted-fix branch named
-`work/fix/<feature>/<what-fix>` when repairing one feature. Do not use
-`work/<feature>/fix/<what-fix>`: a persistent `work/<feature>` ref already
-occupies that Git ref prefix. Record the expected RED and the matching GREEN
-shell output in the evidence record.
-
 ## 4. Useful commands
 
 Run one test method:

docs/superpowers/plans/2026-08-15-access-navigation-icon-intern-picker.md

@@ -1,32 +0,0 @@
-# Access, Navigation, Icon, and Intern Picker Fix Plan
-
-## Scope
-
-Record the durable workflow for the targeted fixes in this plan. This plan does
-not change product behavior, dependencies, schemas, or the five persistent
-feature-branch ownership areas.
-
-## Implementation steps
-
-1. Prove RED: the contributor guides lack the realizable repair-branch name.
-2. Add one branch rule to contributor guides, design records, plans, and tracked
-   coordination authority: `work/fix/<feature>/<what-fix>` from verified
-   `main`.
-3. State why `work/<feature>/fix/<what-fix>` is invalid while its persistent
-   `work/<feature>` ref exists.
-4. Regenerate the local SRS after amending the existing operational requirement;
-   do not add a requirement ID or a use case.
-5. Prove GREEN with the executable six-guide regression that independently
-   rejects a positive nested-form recommendation in every guide,
-   coordination-authority consistency, requirement/use-case counts, local-link
-   resolution, and an immutable base-to-candidate whitespace check. Commit the
-   tracked guidance locally; do not push or merge.
-
-## Exit criteria
-
-- The tracked guides, design record, implementation plan, root coordination
-  authority, and evidence record agree on the same repair-branch spelling.
-- The local authoritative, explained, simple, and generated SRS catalogues keep
-  exactly 260 unique requirement IDs and the SRS keeps 14 use cases.
-- The forbidden nested form is documented only as forbidden, not as a usable
-  branch name.

docs/superpowers/specs/2026-08-15-access-navigation-icon-intern-picker-design.md

@@ -1,40 +0,0 @@
-# Design Record: Durable Fix-Branch Workflow
-
-- **Date:** 2026-08-15
-- **Status:** Accepted
-- **Related plan:** [Access, Navigation, Icon, and Intern Picker Fix Plan](../plans/2026-08-15-access-navigation-icon-intern-picker.md)
-
-## Context
-
-The repository keeps five persistent feature refs: `work/platform`,
-`work/projects`, `work/tasks`, `work/attendance`, and `work/reports-ui`.
-A proposed nested repair name such as `work/platform/fix/example` cannot coexist
-with the existing `work/platform` ref because Git cannot use one ref as both a
-leaf and a prefix.
-
-## Decision
-
-Use `work/fix/<feature>/<what-fix>` for each targeted repair. Create its clean,
-isolated worktree from the taskmaster-verified current `main`. The `<feature>`
-segment identifies the owning persistent area; it does not nest below that
-persistent branch.
-
-The forbidden form is `work/<feature>/fix/<what-fix>`. A repair owner preserves
-other worktrees, records RED and GREEN evidence, commits locally, and does not
-push or merge without separate authority.
-
-## Consequences
-
-- Persistent feature branches remain available for their iteration ownership.
-- A repair can be reviewed and handed off as one immutable branch head.
-- Contributor documentation, local coordination authority, and generated SRS
-  traceability use the same spelling.
-
-## Validation
-
-The executable documentation validator checks the exact approved statement in
-each of the six tracked guides and independently rejects an injected positive
-nested-branch recommendation in every guide. The copied root coordination
-authority uses the same rule and is checked separately for consistency. The
-evidence record also verifies requirement counts, generated SRS use-case count,
-and local Markdown links.

docs/tests/integration/eligible-intern-picker.md

@@ -0,0 +1,161 @@
+# Test Evidence: Eligible Intern picker query
+
+- **Test type:** Integration
+- **Requirement IDs:** ACC-014, ACC-019–ACC-021, AUTH-001, PRJ-017, TST-001–TST-010
+- **Scenario IDs:** AC-ACC-009, AC-ACC-010, AC-PRJ-010 (selection-eligibility support)
+- **Test class/method:** com.lab.labtimesheet.feature.account.service.EligibleInternOptionIntegrationTest#listsOnlyActiveInternsWithActiveInclusiveInternshipsInPickerOrder; #rejectsMissingBusinessDate
+- **Implementation commit:** e70159a81b6445825f6d5f912ecf3c4aa3c1aa85
+
+## Protected behavior
+
+Pending, locked, deactivated, non-Intern, not-started, completed, and date-expired records must not appear in the
+Account-owned Intern picker. An option is selectable only when both account and internship are ACTIVE and the
+explicit business date lies within the inclusive internship range. The returned numeric user ID is the internal
+submission identity, and options sort by display name then student code.
+The public query rejects a missing business date with the documented actionable message instead of issuing an
+ambiguous null-bound database query.
+
+## Test method
+
+The PostgreSQL 18.4 integration test persists valid account/profile combinations through the account feature's JPA
+entities and repositories. It uses SQL only as a test fixture for future lock, deactivation, and completion states
+whose production transitions are outside this change. It calls the public Account service query and compares the
+complete immutable DTO sequence, including both inclusive date boundaries and unique user IDs.
+Its separate null-date regression calls the same public service method and asserts the exact
+<code>IllegalArgumentException</code> message documented by that method.
+
+## Hand-derived expected result
+
+For business date 2026-08-14, profiles starting on that date and ending on that date remain eligible. The only
+expected options are Alpha / STU-100, Alpha / STU-200, and Zeta / STU-300, in that order. Every other seeded
+row fails at least one account role/state, internship state, or inclusive date condition.
+For a missing business date, the service must immediately throw
+<code>IllegalArgumentException("Business date is required")</code>.
+
+## RED
+
+**Command**
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw -Dtest=EligibleInternOptionIntegrationTest test
+~~~
+
+**Observed result**
+
+~~~text
+[ERROR] EligibleInternOptionIntegrationTest.java:[11,54] cannot find symbol
+  symbol:   class EligibleInternOption
+  location: package com.lab.labtimesheet.feature.account.model.dto
+BUILD FAILURE
+~~~
+
+## GREEN
+
+**Command**
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw -Dtest=EligibleInternOptionIntegrationTest test
+~~~
+
+**Observed result**
+
+~~~text
+PostgreSQL 18.4 Testcontainers started and Flyway applied V1 baseline.
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
+BUILD SUCCESS
+~~~
+
+## Review follow-up: missing business date
+
+The public guard was temporarily removed solely to prove the new regression fails for the intended reason, then
+restored exactly before the GREEN checks. The follow-up commit contains only the regression test and evidence.
+
+### RED
+
+**Command**
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw '-Dtest=EligibleInternOptionIntegrationTest#rejectsMissingBusinessDate' test
+~~~
+
+**Observed result**
+
+~~~text
+Tests run: 1, Failures: 1, Errors: 0, Skipped: 0
+java.lang.AssertionError: Expecting code to raise a throwable.
+BUILD FAILURE
+~~~
+
+### GREEN
+
+**Command**
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw '-Dtest=EligibleInternOptionIntegrationTest#rejectsMissingBusinessDate' test
+~~~
+
+**Observed result**
+
+~~~text
+PostgreSQL 18.4 Testcontainers started and Flyway applied V1 baseline.
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
+BUILD SUCCESS
+~~~
+
+## Affected suite
+
+**Command and result**
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw -Dtest=EligibleInternOptionIntegrationTest,AccountActivationIntegrationTest,BootstrapIntegrationTest,AccountWebIntegrationTest,AuthenticationWebIntegrationTest,BootstrapOnboardingWebIntegrationTest test
+
+Selected account reports: 13 tests, 0 failures, 0 errors, 0 skipped.
+
+./mvnw -Dtest=AccountActivationIntegrationTest test
+Tests run: 2, Failures: 0, Errors: 0, Skipped: 0
+BUILD SUCCESS
+
+./mvnw -Dtest=LayerStructureTest test
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
+BUILD SUCCESS
+
+./mvnw test
+Tests run: 105, Failures: 0, Errors: 0, Skipped: 0
+BUILD SUCCESS
+~~~
+
+### Review follow-up affected account-service checks
+
+~~~text
+export JAVA_HOME=/opt/homebrew/opt/openjdk@25
+export PATH="$JAVA_HOME/bin:$PATH"
+export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
+./mvnw '-Dtest=EligibleInternOptionIntegrationTest,AccountActivationIntegrationTest,BootstrapIntegrationTest' test
+
+EligibleInternOptionIntegrationTest: 2 tests, 0 failures, 0 errors, 0 skipped
+BootstrapIntegrationTest: 4 tests, 0 failures, 0 errors, 0 skipped
+AccountActivationIntegrationTest: 2 tests, 0 failures, 0 errors, 0 skipped
+Selected account-service reports: 8 tests, 0 failures, 0 errors, 0 skipped.
+BUILD SUCCESS
+~~~
+
+## External-test boundaries
+
+This query does not authorize Project membership itself; the consuming Project transaction must still recheck
+membership and ownership invariants. It does not test the later lifecycle mutation workflows that produce locked,
+deactivated, or completed rows.

docs/tests/unit/fix-branch-workflow-documentation.md

@@ -1,119 +0,0 @@
-# Test Evidence: durable fix-branch documentation workflow
-
-- **Test type:** Unit (documentation contract)
-- **Requirement IDs:** `OPS-019`, `TST-009`, `TST-010`
-- **Scenario IDs:** `AC-TST-001`
-- **Test class/method:** `scripts/verify-fix-branch-workflow.cjs --self-test`
-- **Implementation commit:** `f013ad7707b36959ddca891fe0d52f81bba3ee80`
-- **Review-fix commit:** `d617769499362e92d058684501af3c1ae6b145b0`
-
-## Protected behavior
-
-Targeted repairs use the realizable `work/fix/<feature>/<what-fix>` branch and
-clean worktree from taskmaster-verified `main`. Contributor guidance must reject
-the impossible `work/<feature>/fix/<what-fix>` form while persistent
-`work/<feature>` refs exist.
-
-## Test method
-
-Use the tracked Node validator rather than an artificial Java test. It requires
-the exact approved statement in each of the six guides, then self-tests that an
-extra positive nested-branch recommendation is rejected. The original RED
-proves the required branch name was absent from the four contributor guides;
-the review-fix RED proves the executable regression was absent.
-
-## Hand-derived expected result
-
-The required fix-branch spelling appears exactly once in each of the six tracked
-documentation artifacts, and the only nested-form reference is inside that
-artifact's exact approved statement. A simulated positive nested-branch
-recommendation must fail. The existing SRS generator must still report 260
-requirements and 14 use cases.
-
-## RED
-
-**Command**
-
-```text
-rg -n -F 'work/fix/<feature>/<what-fix>' AGENTS.md README.md DEVELOPMENT.md TESTING.md
-```
-
-**Observed result**
-
-```text
-exit 1; no matching lines
-```
-
-The failure was expected: the required realizable repair-branch rule was absent
-before this documentation change.
-
-### Review-fix RED
-
-**Command**
-
-```text
-node scripts/verify-fix-branch-workflow.cjs --self-test
-```
-
-**Observed result**
-
-```text
-exit 1
-Error: Cannot find module '.../scripts/verify-fix-branch-workflow.cjs'
-```
-
-The executable regression required to reject a positive nested-branch
-recommendation did not exist.
-
-## GREEN
-
-**Command**
-
-```text
-node scripts/verify-fix-branch-workflow.cjs --self-test
-```
-
-**Observed result**
-
-```text
-Fix-branch workflow documentation: 6 approved statements validated
-Positive nested branch recommendation: rejected
-```
-
-## Affected suite
-
-**Command and result**
-
-```text
-node labtimesheet-docs-hub/ui-mockups/build-srs.cjs
-node -e 'const fs=require("node:fs"); const checks=[["authoritative","labtimesheet-docs-hub/requirements-specification.md",/^\| ([A-Z]{2,4}-\d{3}) \|/gm],["explained","labtimesheet-docs-hub/explained/requirements-specification.md",/^\| ([A-Z]{2,4}-\d{3}) \|/gm],["simple","labtimesheet-docs-hub/explained/requirements-specification-simple.md",/^- \*\*([A-Z]{2,4}-\d{3}):\*\*/gm],["generated SRS","labtimesheet-docs-hub/software-requirements-specification.md",/^\| ([A-Z]{2,4}-\d{3}) \|/gm]]; for (const [name,file,pattern] of checks) { const ids=[...fs.readFileSync(file,"utf8").matchAll(pattern)].map(match=>match[1]); if (ids.length !== 260 || new Set(ids).size !== 260) throw new Error(`${name}: ${ids.length} rows, ${new Set(ids).size} unique`); console.log(`${name}: ${ids.length} rows, ${new Set(ids).size} unique IDs`); } const srs=fs.readFileSync("labtimesheet-docs-hub/software-requirements-specification.md","utf8"); const useCases=(srs.match(/^### 5\.\d+ UC-\d{2} —/gm)||[]).length; if (useCases !== 14) throw new Error(`SRS use cases: ${useCases}`); console.log(`generated SRS: ${useCases} use cases`);'
-node -e 'const fs=require("node:fs"); const path=require("node:path"); let checked=0; const broken=[]; for (const file of process.argv.slice(1)) { const text=fs.readFileSync(file,"utf8"); for (const match of text.matchAll(/!?\[[^\]]*\]\(([^)]+)\)/g)) { const target=match[1].trim().replace(/^<|>$/g,"").split("#")[0].split("?")[0]; if (!target || /^[a-z][a-z0-9+.-]*:/i.test(target) || target.startsWith("//")) continue; checked += 1; if (!fs.existsSync(path.resolve(path.dirname(file), decodeURIComponent(target)))) broken.push(`${file}: ${target}`); } } if (broken.length) throw new Error(`Broken local Markdown links:\n${broken.join("\n")}`); console.log(`Local Markdown links: ${checked} resolved`);' AGENTS.md README.md DEVELOPMENT.md TESTING.md docs/superpowers/specs/2026-08-15-access-navigation-icon-intern-picker-design.md docs/superpowers/plans/2026-08-15-access-navigation-icon-intern-picker.md docs/tests/unit/fix-branch-workflow-documentation.md
-git diff --check 8be1b754e188367b260981718a5d33fc2d4d8a3b d617769499362e92d058684501af3c1ae6b145b0
-```
-
-The SRS regeneration and count assertion ran from the main root because the
-ignored requirements hub is local authority there. The link assertion and
-the exact base-to-candidate `git diff --check` ran from this fix worktree; the
-SRS generator also rejects a broken local SRS target before it writes the
-generated file.
-
-```text
-Wrote labtimesheet-docs-hub/software-requirements-specification.md
-Requirements: 260; use cases: 14; screens: 48; mockup embeds: 48
-authoritative: 260 rows, 260 unique IDs
-explained: 260 rows, 260 unique IDs
-simple: 260 rows, 260 unique IDs
-generated SRS: 260 rows, 260 unique IDs
-generated SRS: 14 use cases
-Fix-branch workflow documentation: 6 approved statements validated
-Positive nested branch recommendation: rejected
-Local Markdown links: 7 resolved
-git diff --check 8be1b754e188367b260981718a5d33fc2d4d8a3b d617769499362e92d058684501af3c1ae6b145b0: exit 0
-```
-
-## External-test boundaries
-
-This documentation contract does not create or manipulate Git branches, start
-the application, or replace branch-owner review. It validates the durable rule
-and SRS traceability only; a taskmaster still authorizes branch creation,
-integration, and any push.

scripts/verify-fix-branch-workflow.cjs

@@ -1,79 +0,0 @@
-const assert = require('node:assert/strict');
-const fs = require('node:fs');
-const path = require('node:path');
-
-const repositoryRoot = path.resolve(__dirname, '..');
-const validForm = '`work/fix/<feature>/<what-fix>`';
-const invalidForm = '`work/<feature>/fix/<what-fix>`';
-const documents = [
-  {
-    file: 'AGENTS.md',
-    approved: '- A targeted repair uses a clean, isolated `work/fix/<feature>/<what-fix>` branch and worktree from the taskmaster-verified current `main`. Do not use `work/<feature>/fix/<what-fix>`: the persistent `work/<feature>` ref already occupies that Git ref prefix.'
-  },
-  {
-    file: 'README.md',
-    approved: 'For a targeted repair, create a clean isolated branch and worktree from the\ntaskmaster-verified current `main` named\n`work/fix/<feature>/<what-fix>`. Do not nest it as\n`work/<feature>/fix/<what-fix>`: the persistent `work/<feature>` ref already\nuses that Git ref prefix.'
-  },
-  {
-    file: 'DEVELOPMENT.md',
-    approved: 'For a targeted repair, start a clean worktree from the taskmaster-verified\ncurrent `main` on `work/fix/<feature>/<what-fix>`. Keep it separate from the\nfive persistent `work/<feature>` branches. Do not use\n`work/<feature>/fix/<what-fix>` because the persistent `work/<feature>` ref\nalready occupies that Git ref prefix.'
-  },
-  {
-    file: 'TESTING.md',
-    approved: 'Run that check from the clean targeted-fix branch named\n`work/fix/<feature>/<what-fix>` when repairing one feature. Do not use\n`work/<feature>/fix/<what-fix>`: a persistent `work/<feature>` ref already\noccupies that Git ref prefix. Record the expected RED and the matching GREEN\nshell output in the evidence record.'
-  },
-  {
-    file: 'docs/superpowers/specs/2026-08-15-access-navigation-icon-intern-picker-design.md',
-    approved: 'Use `work/fix/<feature>/<what-fix>` for each targeted repair. Create its clean,\nisolated worktree from the taskmaster-verified current `main`. The `<feature>`\nsegment identifies the owning persistent area; it does not nest below that\npersistent branch.\n\nThe forbidden form is `work/<feature>/fix/<what-fix>`. A repair owner preserves\nother worktrees, records RED and GREEN evidence, commits locally, and does not\npush or merge without separate authority.'
-  },
-  {
-    file: 'docs/superpowers/plans/2026-08-15-access-navigation-icon-intern-picker.md',
-    approved: '2. Add one branch rule to contributor guides, design records, plans, and tracked\n   coordination authority: `work/fix/<feature>/<what-fix>` from verified\n   `main`.\n3. State why `work/<feature>/fix/<what-fix>` is invalid while its persistent\n   `work/<feature>` ref exists.'
-  }
-];
-
-/** Validates that every tracked guide contains only its approved branch wording. */
-function validate(contents) {
-  const failures = [];
-
-  for (const {file, approved} of documents) {
-    const content = contents.get(file);
-    if (count(content, validForm) !== 1) failures.push(`${file} must contain ${validForm} exactly once`);
-    if (!content.includes(approved)) failures.push(`${file} is missing its approved branch workflow statement`);
-
-    const outsideApprovedStatement = content.replace(approved, '');
-    if (outsideApprovedStatement.includes(validForm) || outsideApprovedStatement.includes(invalidForm)) {
-      failures.push(`${file} contains an unapproved branch-form reference`);
-    }
-  }
-
-  if (failures.length) throw new Error(failures.join('\n'));
-}
-
-function count(content, value) {
-  return content.split(value).length - 1;
-}
-
-function readContents() {
-  return new Map(documents.map(({file}) => [file, fs.readFileSync(path.join(repositoryRoot, file), 'utf8')]));
-}
-
-const contents = readContents();
-validate(contents);
-
-if (process.argv.includes('--self-test')) {
-  for (const {file} of documents) {
-    const positiveRecommendation = new Map(contents);
-    positiveRecommendation.set(file, `${contents.get(file)}\nUse ${invalidForm} for a targeted repair.\n`);
-    assert.throws(
-      () => validate(positiveRecommendation),
-      (error) => error instanceof Error
-        && error.message.includes(`${file} contains an unapproved branch-form reference`)
-    );
-  }
-}
-
-console.log(`Fix-branch workflow documentation: ${documents.length} approved statements validated`);
-if (process.argv.includes('--self-test')) {
-  console.log(`Positive nested branch recommendations: ${documents.length}/${documents.length} rejected`);
-}

src/main/java/com/lab/labtimesheet/feature/account/model/dto/EligibleInternOption.java

@@ -0,0 +1,21 @@
+package com.lab.labtimesheet.feature.account.model.dto;
+
+import java.time.LocalDate;
+
+/**
+ * Immutable non-secret selection data for an eligible Intern.
+ * The numeric user ID is the internal form submission identity; displayed fields are not authorization identifiers.
+ *
+ * @param userId persistent account identifier submitted by a consuming form
+ * @param displayName user-facing Intern name
+ * @param studentCode university student code shown to distinguish Interns
+ * @param internshipStart inclusive internship eligibility start date
+ * @param internshipEnd inclusive internship eligibility end date
+ */
+public record EligibleInternOption(
+        long userId,
+        String displayName,
+        String studentCode,
+        LocalDate internshipStart,
+        LocalDate internshipEnd) {
+}

src/main/java/com/lab/labtimesheet/feature/account/repository/InternProfileRepository.java

@@ -1,8 +1,12 @@
 package com.lab.labtimesheet.feature.account.repository;
 
 import java.time.LocalDate;
+import java.util.List;
 
+import com.lab.labtimesheet.feature.account.model.AccountStatus;
+import com.lab.labtimesheet.feature.account.model.GlobalRole;
 import com.lab.labtimesheet.feature.account.model.InternshipStatus;
+import com.lab.labtimesheet.feature.account.model.dto.EligibleInternOption;
 import com.lab.labtimesheet.feature.account.model.entity.InternProfile;
 import jakarta.persistence.LockModeType;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -19,6 +23,34 @@ public interface InternProfileRepository extends JpaRepository<InternProfile, Lo
     boolean existsByUserIdAndInternshipStatusAndInternshipStartDateLessThanEqualAndInternshipEndDateGreaterThanEqual(
             Long userId, InternshipStatus status, LocalDate latestStartDate, LocalDate earliestEndDate);
 
+    /**
+     * Projects account-owned non-secret selection data for Interns eligible on one inclusive business date.
+     * Results are ordered by display name, student code, then user ID for deterministic form rendering.
+     *
+     * @param globalRole required immutable Intern role
+     * @param accountStatus required active account state
+     * @param internshipStatus required active internship state
+     * @param businessDate date that must fall within the inclusive internship range
+     * @return eligible Intern selection projections without duplicate profile rows
+     */
+    @Query("""
+            select new com.lab.labtimesheet.feature.account.model.dto.EligibleInternOption(
+                u.id, u.displayName, p.studentCode, p.internshipStartDate, p.internshipEndDate)
+            from InternProfile p
+            join AppUser u on u.id = p.userId
+            where u.globalRole = :globalRole
+              and u.accountStatus = :accountStatus
+              and p.internshipStatus = :internshipStatus
+              and p.internshipStartDate <= :businessDate
+              and p.internshipEndDate >= :businessDate
+            order by u.displayName asc, p.studentCode asc, u.id asc
+            """)
+    List<EligibleInternOption> findEligibleInternOptions(
+            @Param("globalRole") GlobalRole globalRole,
+            @Param("accountStatus") AccountStatus accountStatus,
+            @Param("internshipStatus") InternshipStatus internshipStatus,
+            @Param("businessDate") LocalDate businessDate);
+
     /** Counts Intern profiles in a lifecycle state. */
     long countByInternshipStatus(InternshipStatus status);
 

src/main/java/com/lab/labtimesheet/feature/account/service/AccountService.java

@@ -8,6 +8,7 @@ import java.time.Clock;
 import java.time.Duration;
 import java.time.LocalDate;
 import java.util.Base64;
+import java.util.List;
 
 import com.lab.labtimesheet.feature.account.model.AccountStatus;
 import com.lab.labtimesheet.feature.account.model.GlobalRole;
@@ -17,6 +18,7 @@ import com.lab.labtimesheet.feature.account.model.dto.AccountCreation;
 import com.lab.labtimesheet.feature.account.model.dto.AccountIdentity;
 import com.lab.labtimesheet.feature.account.model.dto.AccountSummary;
 import com.lab.labtimesheet.feature.account.model.dto.CreateAccountCommand;
+import com.lab.labtimesheet.feature.account.model.dto.EligibleInternOption;
 import com.lab.labtimesheet.feature.account.model.entity.AppUser;
 import com.lab.labtimesheet.feature.account.model.entity.InternProfile;
 import com.lab.labtimesheet.feature.account.model.entity.UserActionToken;
@@ -238,6 +240,24 @@ public class AccountService {
                 .isPresent();
     }
 
+    /**
+     * Lists non-secret Intern selection options eligible on an explicit business date.
+     * The result requires active account and internship states plus inclusive internship dates, but it does not
+     * authorize a consuming Project operation; that operation must recheck its own ownership and membership rules.
+     *
+     * @param businessDate server-derived business date to evaluate inclusively
+     * @return deterministic options ordered by display name, student code, then account ID
+     * @throws IllegalArgumentException when {@code businessDate} is {@code null}
+     */
+    @Transactional(readOnly = true)
+    public List<EligibleInternOption> eligibleInternOptions(LocalDate businessDate) {
+        if (businessDate == null) {
+            throw new IllegalArgumentException("Business date is required");
+        }
+        return internProfiles.findEligibleInternOptions(
+                GlobalRole.INTERN, AccountStatus.ACTIVE, InternshipStatus.ACTIVE, businessDate);
+    }
+
     /**
      * Resolves the cross-feature identity of a currently eligible Intern.
      *

src/test/java/com/lab/labtimesheet/feature/account/service/EligibleInternOptionIntegrationTest.java

@@ -0,0 +1,165 @@
+package com.lab.labtimesheet.feature.account.service;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.time.LocalDate;
+import java.util.List;
+
+import com.lab.labtimesheet.config.TestcontainersConfiguration;
+import com.lab.labtimesheet.feature.account.model.GlobalRole;
+import com.lab.labtimesheet.feature.account.model.dto.EligibleInternOption;
+import com.lab.labtimesheet.feature.account.model.entity.AppUser;
+import com.lab.labtimesheet.feature.account.model.entity.InternProfile;
+import com.lab.labtimesheet.feature.account.repository.AppUserRepository;
+import com.lab.labtimesheet.feature.account.repository.InternProfileRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.annotation.Import;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ActiveProfiles;
+
+@Import(TestcontainersConfiguration.class)
+@SpringBootTest
+@ActiveProfiles("test")
+@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
+class EligibleInternOptionIntegrationTest {
+    private static final Instant NOW = Instant.parse("2026-08-14T00:00:00Z");
+    private static final LocalDate BUSINESS_DATE = LocalDate.of(2026, 8, 14);
+
+    @Autowired
+    private AccountService accounts;
+
+    @Autowired
+    private AppUserRepository users;
+
+    @Autowired
+    private InternProfileRepository internProfiles;
+
+    @Autowired
+    private JdbcTemplate jdbc;
+
+    private AppUser admin;
+    private int userSequence;
+
+    @BeforeEach
+    void setUp() {
+        admin = users.saveAndFlush(AppUser.bootstrapAdmin(
+                "picker-admin@example.com", "Picker Admin", "encoded-password", NOW));
+    }
+
+    @Test
+    void listsOnlyActiveInternsWithActiveInclusiveInternshipsInPickerOrder() {
+        long lowerBoundary = activeIntern("Alpha", "STU-100", BUSINESS_DATE, BUSINESS_DATE.plusDays(10));
+        long upperBoundary = activeIntern("Alpha", "STU-200", BUSINESS_DATE.minusDays(10), BUSINESS_DATE);
+        long laterName = activeIntern("Zeta", "STU-300", BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+
+        pendingInternWithActiveProfile("Ignored Pending", "STU-400");
+        long locked = activeIntern("Ignored Locked", "STU-500", BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+        lock(locked);
+        long deactivated = activeIntern(
+                "Ignored Deactivated", "STU-600", BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+        deactivate(deactivated);
+        activeMentorWithActiveProfile("Ignored Mentor", "STU-700");
+        activeInternWithNotStartedProfile("Ignored Not Started", "STU-800");
+        activeIntern("Ignored Ended", "STU-900", BUSINESS_DATE.minusDays(10), BUSINESS_DATE.minusDays(1));
+        long completed = activeIntern(
+                "Ignored Completed", "STU-1000", BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+        completeInternship(completed);
+
+        List<EligibleInternOption> options = accounts.eligibleInternOptions(BUSINESS_DATE);
+
+        assertThat(options).containsExactly(
+                new EligibleInternOption(
+                        lowerBoundary, "Alpha", "STU-100", BUSINESS_DATE, BUSINESS_DATE.plusDays(10)),
+                new EligibleInternOption(
+                        upperBoundary, "Alpha", "STU-200", BUSINESS_DATE.minusDays(10), BUSINESS_DATE),
+                new EligibleInternOption(
+                        laterName, "Zeta", "STU-300", BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1)));
+        assertThat(options).extracting(EligibleInternOption::userId).doesNotHaveDuplicates();
+    }
+
+    @Test
+    void rejectsMissingBusinessDate() {
+        assertThatThrownBy(() -> accounts.eligibleInternOptions(null))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessage("Business date is required");
+    }
+
+    private long activeIntern(String displayName, String studentCode, LocalDate startDate, LocalDate endDate) {
+        long userId = activeUser(GlobalRole.INTERN, displayName);
+        activeProfile(userId, studentCode, startDate, endDate);
+        return userId;
+    }
+
+    private void pendingInternWithActiveProfile(String displayName, String studentCode) {
+        long userId = pendingUser(GlobalRole.INTERN, displayName);
+        activeProfile(userId, studentCode, BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+    }
+
+    private void activeMentorWithActiveProfile(String displayName, String studentCode) {
+        long userId = activeUser(GlobalRole.MENTOR, displayName);
+        activeProfile(userId, studentCode, BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1));
+    }
+
+    private void activeInternWithNotStartedProfile(String displayName, String studentCode) {
+        long userId = activeUser(GlobalRole.INTERN, displayName);
+        internProfiles.saveAndFlush(InternProfile.notStarted(
+                userId, studentCode, BUSINESS_DATE.minusDays(1), BUSINESS_DATE.plusDays(1), NOW));
+    }
+
+    private long activeUser(GlobalRole role, String displayName) {
+        AppUser user = AppUser.pending(nextEmail(), displayName, role, admin, NOW);
+        user.activate("encoded-password", NOW);
+        return users.saveAndFlush(user).getId();
+    }
+
+    private long pendingUser(GlobalRole role, String displayName) {
+        return users.saveAndFlush(AppUser.pending(nextEmail(), displayName, role, admin, NOW)).getId();
+    }
+
+    private void activeProfile(long userId, String studentCode, LocalDate startDate, LocalDate endDate) {
+        InternProfile profile = InternProfile.notStarted(userId, studentCode, startDate, endDate, NOW);
+        profile.activate(NOW);
+        internProfiles.saveAndFlush(profile);
+    }
+
+    private void lock(long userId) {
+        assertThat(jdbc.update(
+                """
+                update app_users
+                set account_status = 'LOCKED', locked_at = ?, updated_at = ?
+                where id = ?
+                """,
+                Timestamp.from(NOW), Timestamp.from(NOW), userId)).isOne();
+    }
+
+    private void deactivate(long userId) {
+        assertThat(jdbc.update(
+                """
+                update app_users
+                set account_status = 'DEACTIVATED', deactivated_at = ?, updated_at = ?
+                where id = ?
+                """,
+                Timestamp.from(NOW), Timestamp.from(NOW), userId)).isOne();
+    }
+
+    private void completeInternship(long userId) {
+        assertThat(jdbc.update(
+                """
+                update intern_profiles
+                set internship_status = 'COMPLETED', completed_at = ?, updated_at = ?
+                where user_id = ?
+                """,
+                Timestamp.from(NOW), Timestamp.from(NOW), userId)).isOne();
+    }
+
+    private String nextEmail() {
+        return "picker-" + ++userSequence + "@example.com";
+    }
+}