Verify end-to-end VALID render for all V2 tools via workspace producer with executable checks - PR 11.212

Author: DavidQ

docs/dev/reports/PR_11_212_report.md

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+# PR_11_212 Report — V2 Producer -> Tool VALID Render Verification
+
+## Tools Validated
+- `asset-browser-v2`
+- `palette-manager-v2`
+- `svg-asset-studio-v2`
+- `tilemap-studio-v2`
+- `vector-map-editor-v2`
+
+## VALID Render Confirmation Per Tool
+Runtime test `tests/runtime/V2ProducerRender.test.mjs` verified for each tool:
+1. Fixture exists and parses.
+2. Producer simulation generates `hostContextId`.
+3. Producer simulation writes `sessionStorage[hostContextId]`.
+4. Launch URL includes `?hostContextId=<id>`.
+5. Tool session lookup resolves from URL `hostContextId`.
+6. Classification resolves to `VALID`.
+7. Tool exposes all three state regions (EMPTY/INVALID/VALID).
+8. Tool JS valid-path toggles are present:
+   - `VALID` region shown
+   - `EMPTY` hidden
+   - `INVALID` hidden
+
+All five tools passed all checks.
+
+## Render Fixes Applied
+- No render-blocking defects were exposed by this PR test.
+- No changes were required in `tools/workspace-v2/index.js` or `tools/*-v2/index.js`.
+
+## Validation Commands Run
+1. `node --check tests/runtime/V2ProducerRender.test.mjs`  
+   - Result: **PASS**
+2. `node tests/runtime/V2ProducerRender.test.mjs`  
+   - Result: **PASS**
+3. `node --check tools/*-v2/index.js`  
+   - Result: **FAIL** in PowerShell wildcard expansion (`*` passed literally to Node)
+4. Equivalent per-tool checks:
+   - `node --check tools/asset-browser-v2/index.js` — **PASS**
+   - `node --check tools/palette-manager-v2/index.js` — **PASS**
+   - `node --check tools/svg-asset-studio-v2/index.js` — **PASS**
+   - `node --check tools/tilemap-studio-v2/index.js` — **PASS**
+   - `node --check tools/vector-map-editor-v2/index.js` — **PASS**
+
+## Runtime Output
+- `tmp/v2-producer-render-results.json`
+- failures: `0`
+
+## Fallback Confirmation
+- No fallback/default/demo loading introduced.
+- Session flow remains explicit:
+  - producer writes `sessionStorage[hostContextId]`
+  - tool reads URL `hostContextId`
+  - tool resolves session from storage