Clean up root repository folder

[konard]

Summary

Fixes #79.

• Moved the browser package from web/ to js/, including package.json and package-lock.json.
• Merged the root WebAssembly docs into js/README.md and updated repo docs to point at the new package location.
• Moved root ci-logs/ and issue 12 screenshots into case-study evidence folders, and removed .gitkeep.
• Updated WebAssembly CI path filters, npm working directories, and setup-node cache dependency path for js/package-lock.json.
• Added a repository layout regression test and an issue 79 case study with captured issue, PR, CI, template, and verification evidence.

Verification

• git diff --cached --check
• node --test js/test/repositoryLayout.test.mjs
• npm ci --prefix js
• npm --prefix js run test:js
• npm --prefix js run test:wasm
• npm --prefix js run build
• cargo test --manifest-path rust/Cargo.toml --all-features
• dotnet test csharp/Foundation.Data.Doublets.Cli.sln

Evidence

• Case study: docs/case-studies/issue-79/README.md
• Evidence folder: docs/case-studies/issue-79/evidence/
• The case study records the template comparison, stale C# failure analysis, current Pages/NuGet workflow coverage, and before/after layout checks.

[konard]

Working session summary

Implemented and pushed the fix to PR 80: #80

What changed:

• Moved the browser package from web/ to js/, including package.json and package-lock.json.
• Merged root WASM docs into js/README.md.
• Moved ci-logs/ and issue 12 screenshots into case-study folders.
• Removed .gitkeep.
• Updated WebAssembly CI paths, npm working directories, and lockfile cache path.
• Added/extended repository layout regression coverage and issue 79 evidence.

Verification passed locally:

• node --test js/test/repositoryLayout.test.mjs
• npm ci --prefix js
• npm --prefix js run test:js
• npm --prefix js run test:wasm
• npm --prefix js run build
• cargo test --manifest-path rust/Cargo.toml --all-features
• dotnet test csharp/Foundation.Data.Doublets.Cli.sln

PR status:

• Marked ready for review.
• Latest commit: 7c78b6b
• GitHub WebAssembly CI passed for both push and PR runs.
• Working tree is clean.
• Branch is not behind main.

Sources checked for CI behavior:

• https://github.com/actions/setup-node
• https://docs.github.com/en/pages/getting-started-with-github-pages/using-custom-workflows-with-github-pages

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This summary was automatically extracted from the AI working session output.

[konard]

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

💰 Cost estimation:

• Model: GPT-5.5
• Provider: OpenAI
• Public pricing estimate: $14.352485

📊 Context and tokens usage:

• 278.8K / 1.1M (27%) input tokens, 39.2K / 128K (31%) output tokens

Total: (278.8K + 9.8M cached) input tokens, 39.2K output tokens, $14.352485 cost

🤖 Models used:

• Tool: OpenAI Codex
• Requested: gpt-5.5
• Model: GPT-5.5 (gpt-5.5)

📎 Log file uploaded as Repository (40502KB)

• View complete solution draft log

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Now working session is ended, feel free to review and add any feedback on the solution draft.

[konard]

✅ Ready to merge

This pull request is now ready to be merged:

• All CI checks have passed
• No merge conflicts
• No pending changes

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