Create PR_26126_011-preview-generator-v2-rollback-and-cold-copy. Roll back all Preview Generator V2 changes made after the repo state before Preview Generator V2 was created. Remove the failed Preview Generator V2 implementation/docs/test changes from PR_26126_008 through PR_26126_010 unless needed only as review artifacts. Then create tools/preview-generator-v2/index.html by copying existing working preview.html cold as-is with no reskin, no rewrite, no renamed labels, no regrouping, no new controls, no removed controls, and no behavior changes. Preserve existing functionality exactly. Do not create a Preview Generator V2 schema. Do not modify samples. Add only the minimum registration/linking needed to open the new tool if required. Produce review artifacts showing rollback plus cold-copy result.

Author: DavidQ

docs/dev/codex_commands.md

@@ -1,25 +1,24 @@
-# Codex Commands - PR_26126_010-preview-generator-v2-reskin-correction
+# Codex Commands - PR_26126_011-preview-generator-v2-rollback-and-cold-copy
 
 ```bash
-codex run "Create PR_26126_010-preview-generator-v2-reskin-correction. Correct Preview Generator V2 as a reskin of existing preview.html, not a rewrite. Review and preserve all existing preview.html functionality, labels, inputs, ids where possible, and behavior. Regroup the existing controls into the Palette Manager-style layout. Left column must contain: Repo Destination (rename Game Destination; it opens a folder, not a file), Target Source, and Render Controls. Center column must replace Main Preview with Paths or IDs using an input box. Right column must place Status under Output Summary. Header/NAV must remove Apply to Game and Export Image; keep Generate Preview only in the Palette Manager-style NAV. Do not add JSON UI. Do not create a Preview Generator V2 schema. Do not modify samples. Update Playwright/tests only for this corrected reskin behavior. Produce review artifacts."
+codex run "Create PR_26126_011-preview-generator-v2-rollback-and-cold-copy. Roll back all Preview Generator V2 changes made after the repo state before Preview Generator V2 was created. Remove the failed Preview Generator V2 implementation/docs/test changes from PR_26126_008 through PR_26126_010 unless needed only as review artifacts. Then create tools/preview-generator-v2/index.html by copying existing working preview.html cold as-is with no reskin, no rewrite, no renamed labels, no regrouping, no new controls, no removed controls, and no behavior changes. Preserve existing functionality exactly. Do not create a Preview Generator V2 schema. Do not modify samples. Add only the minimum registration/linking needed to open the new tool if required. Produce review artifacts showing rollback plus cold-copy result."
 ```
 
 ## Validation Commands
 
 ```bash
-node --check tools/preview-generator-v2/main.js
-node --check tools/preview-generator-v2/previewGeneratorShell.js
-node --check tests/tools/PreviewGeneratorV2FirstPass.test.mjs
-node tests/tools/PreviewGeneratorV2FirstPass.test.mjs
-git diff --check -- tools/preview-generator-v2/index.html tools/preview-generator-v2/main.js tools/preview-generator-v2/previewGeneratorShell.js tools/preview-generator-v2/previewGeneratorV2.css tools/toolRegistry.js tests/tools/PreviewGeneratorV2FirstPass.test.mjs docs/dev/codex_commands.md docs/dev/commit_comment.txt
+Get-FileHash tools/preview/preview_svg_generator.html, tools/preview-generator-v2/index.html -Algorithm SHA256
+node --input-type=module -e "import('./tools/toolRegistry.js').then(({getToolById})=>{const tool=getToolById('preview-generator-v2'); if(!tool || tool.entryPoint !== 'preview-generator-v2/index.html') throw new Error('preview-generator-v2 registry entry invalid'); console.log('preview-generator-v2 registry entry valid');})"
+node --input-type=module -e "import { chromium } from '@playwright/test'; import { startRepoServer } from './tests/helpers/playwrightRepoServer.mjs'; const server=await startRepoServer(); const browser=await chromium.launch({headless:true}); const page=await browser.newPage({viewport:{width:1280,height:900}}); const errors=[]; page.on('pageerror', error=>errors.push(error.message)); await page.goto(`${server.baseUrl}/tools/preview-generator-v2/index.html`, {waitUntil:'networkidle'}); if (await page.locator('h1').innerText() !== 'Preview SVG Generator') throw new Error('cold-copy heading mismatch'); if (await page.locator('#executeBtn').count() !== 1) throw new Error('executeBtn missing'); if (await page.locator('input[name=\"targetType\"]').count() !== 3) throw new Error('targetType radios missing'); if (await page.locator('#sampleList').count() !== 1) throw new Error('sampleList missing'); if (await page.locator('.preview-generator-v2, [data-preview-generator-v2-header], #shared-theme-header').count() !== 0) throw new Error('reskin shell still present'); if (errors.length) throw new Error(errors.join(' | ')); await browser.close(); await server.close(); console.log('preview-generator-v2 cold-copy browser smoke valid');"
+git diff --check -- tools/preview-generator-v2/index.html tools/toolRegistry.js docs/dev/codex_commands.md docs/dev/commit_comment.txt
 npm run test:workspace-v2
 npm run codex:review-artifacts
 ```
 
 ## Notes
 
-`tools/preview/preview_svg_generator.html` was used as the existing preview generator base because there is no literal `preview.html` file in the repository.
+`tools/preview/preview_svg_generator.html` was used as the existing working preview generator because there is no literal `preview.html` file in the repository.
 
 `npm run test:workspace-v2` was attempted, but the script is not defined in this checkout.
 
-Full samples smoke test was skipped because this PR is scoped to Preview Generator V2.
+Full samples smoke test was skipped because this PR is scoped to rolling back Preview Generator V2 and cold-copying one tool file.

docs/dev/commit_comment.txt

@@ -1 +1 @@
-Correct Preview Generator V2 reskin layout - PR_26126_010-preview-generator-v2-reskin-correction
+Rollback Preview Generator V2 rewrites and cold-copy working generator - PR_26126_011-preview-generator-v2-rollback-and-cold-copy

docs/dev/reports/codex_changed_files.txt

@@ -1,24 +1,28 @@
 # git status --short
 M docs/dev/codex_commands.md
  M docs/dev/commit_comment.txt
- M docs/dev/reports/codex_changed_files.txt
- M docs/dev/reports/codex_review.diff
- M tests/tools/PreviewGeneratorV2FirstPass.test.mjs
- A tools/preview-generator-v2/index.html
- A tools/preview-generator-v2/main.js
- A tools/preview-generator-v2/previewGeneratorShell.js
- A tools/preview-generator-v2/previewGeneratorV2.css
+ D tests/tools/PreviewGeneratorV2FirstPass.test.mjs
+ M tools/preview-generator-v2/index.html
+ D tools/preview-generator-v2/main.js
+ D tools/preview-generator-v2/previewGeneratorShell.js
+ D tools/preview-generator-v2/previewGeneratorV2.css
+ D tools/preview/index.html
+ D tools/preview/main.js
+ D tools/preview/previewGeneratorShell.js
+ D tools/preview/previewGeneratorV2.css
  M tools/toolRegistry.js
 
 # git diff --stat
-docs/dev/codex_commands.md                         |   19 +-
+docs/dev/codex_commands.md                         |   17 +-
  docs/dev/commit_comment.txt                        |    2 +-
- docs/dev/reports/codex_changed_files.txt           |   32 +-
- docs/dev/reports/codex_review.diff                 | 6646 ++++++++++++++++++--
- tests/tools/PreviewGeneratorV2FirstPass.test.mjs   |  144 +-
- tools/preview-generator-v2/index.html              |  188 +
- tools/preview-generator-v2/main.js                 |  932 +++
- .../preview-generator-v2/previewGeneratorShell.js  |  186 +
- tools/preview-generator-v2/previewGeneratorV2.css  |  490 ++
- tools/toolRegistry.js                              |   18 +
- 10 files changed, 8041 insertions(+), 616 deletions(-)
+ tests/tools/PreviewGeneratorV2FirstPass.test.mjs   |  157 ---
+ tools/preview-generator-v2/index.html              | 1182 +++++++++++++++++---
+ tools/preview-generator-v2/main.js                 |  932 ---------------
+ .../preview-generator-v2/previewGeneratorShell.js  |  186 ---
+ tools/preview-generator-v2/previewGeneratorV2.css  |  490 --------
+ tools/preview/index.html                           |  171 ---
+ tools/preview/main.js                              |  493 --------
+ tools/preview/previewGeneratorShell.js             |  186 ---
+ tools/preview/previewGeneratorV2.css               |  534 ---------
+ tools/toolRegistry.js                              |    4 +-
+ 12 files changed, 1029 insertions(+), 3325 deletions(-)