PR_26175_ALFA_012: Alfa batch B parent/child tables

docs_build/dev/reports/PR_26175_ALFA_012-alfa-batch-b-parent-child-tables.md

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+# PR_26175_ALFA_012 - Alfa Batch B Parent/Child Tables
+
+Date: 2026-06-24
+Branch: PR_26175_ALFA_012-alfa-batch-b-parent-child-tables
+Scope: Game Hub parent/child table model conversion for GitHub PRs #103, #104, and #105
+
+## Executive Summary
+
+Batch B was reviewed against current `main` using the Alfa source chain and the OWNER_053 resolution report. The functional behavior from #103 through #105 is already present on current `main`.
+
+Current main already includes the Game Hub table-first parent rows, source-idea child table, readiness-output child table, and targeted Playwright coverage for the parent/child model. No runtime files were modified in this PR because the old source diff would duplicate or roll back current main behavior.
+
+## Source PRs Covered
+
+| Source PR | Source Purpose | Current Main Result |
+| --- | --- | --- |
+| #103 | Game Hub parent/child table layout | Covered by current `data-game-rows-table`, parent rows, expand toggles, and child rows. |
+| #104 | Source Idea child-table polish | Covered by current source-idea child table with read-only source context. |
+| #105 | Readiness Output child table | Covered by current readiness-output child table and Playwright assertions. |
+
+## Branch Validation
+
+| Check | Result | Notes |
+| --- | --- | --- |
+| Started from `main` after PR 011 | PASS | `main` was checked out, pulled, and clean before branch creation. |
+| Local/origin sync | PASS | Sync was confirmed as `0 0`. |
+| No GitHub PR merged directly | PASS | Source PRs were inspected only. |
+| No branch deleted | PASS | No branch deletion was performed. |
+| No runtime code modified | PASS | Batch B behavior was already present on current main. |
+
+## Requirement Checklist
+
+| Requirement | Result | Notes |
+| --- | --- | --- |
+| Cover PRs #103-#105 | PASS | Each source PR was mapped to current main behavior. |
+| Preserve Theme V2/table-first requirements | PASS | Current implementation uses Theme V2 table classes and no card replacement. |
+| Stack if needed | PASS | No stack dependency was needed because PR 011 was report-only and current main already has Batch B behavior. |
+| Include `codex_review.diff` | PASS | Generated for this branch. |
+| Include `codex_changed_files.txt` | PASS | Generated for this branch. |
+| Create repo-structured ZIP under `tmp/` | PASS | ZIP is generated after commit. |
+
+## Validation Lane Report
+
+Commands run:
+
+```text
+git pull --ff-only
+git status --short
+git branch --show-current
+git rev-list --left-right --count main...origin/main
+git diff --stat origin/pr/26174-ALFA-008-alpha-stack-final-validation..origin/pr/26174-ALFA-011-game-hub-readiness-output-child-table -- <Batch B paths>
+git diff --check
+Test-Path C:\Users\davidq\AppData\Local\ms-playwright\chromium-1217\chrome-win64\chrome.exe
+```
+
+Validation results:
+
+- PASS: Branch gate passed after returning to main from PR 011.
+- PASS: Source Batch B functional delta was inspected.
+- PASS: Current main already contains Game Hub parent/child table behavior.
+- PASS: `git diff --check`.
+- BLOCKED: Targeted Playwright execution remains blocked because the Chromium browser executable is missing.
+
+## Manual Validation Notes
+
+- Current `toolbox/game-hub/game-hub.js` includes `renderSourceIdeaChildTable`, `renderReadinessOutputChildTable`, and `renderExpandedGameRow`.
+- Current `tests/playwright/tools/GameHubMockRepository.spec.mjs` includes parent/child table validation and readiness child row validation.
+- Current implementation keeps the table-first Theme V2 surface and avoids obsolete generated report conflicts from the source PRs.

docs_build/dev/reports/codex_changed_files.txt

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-docs_build/dev/ProjectInstructions/PROJECT_INSTRUCTIONS.md
-docs_build/dev/ProjectInstructions/TEAM_START_COMMANDS.md
-docs_build/dev/ProjectInstructions/addendums/multi_team.md
-docs_build/dev/ProjectInstructions/addendums/pr_workflow.md
-docs_build/dev/ProjectInstructions/addendums/team_release_readiness.md
-docs_build/dev/ProjectInstructions/addendums/team_start_and_release.md
-docs_build/dev/ProjectInstructions/backlog/BACKLOG_MASTER.md
-docs_build/dev/ProjectInstructions/team_assignments/ACTIVE_TEAM_REGISTRY.md
-docs_build/dev/ProjectInstructions/team_assignments/TEAM_ASSIGNMENTS.md
-docs_build/dev/ProjectInstructions/team_assignments/team_ownership.md
-docs_build/dev/reports/PR_26175_OWNER_046-pr-targeted-review-packets.md
-docs_build/dev/reports/PR_REVIEW_003.md
-docs_build/dev/reports/PR_REVIEW_050.md
-docs_build/dev/reports/PR_REVIEW_051.md
-docs_build/dev/reports/PR_REVIEW_118.md
+docs_build/dev/reports/PR_26175_ALFA_012-alfa-batch-b-parent-child-tables.md
 docs_build/dev/reports/codex_changed_files.txt
 docs_build/dev/reports/codex_review.diff