fix(ci): honor excluded paths for all events

[konard]

Fixes #113

Summary

• filter ignored path prefixes before computing every change-gating output
• remove unconditional push bypasses from change-gated jobs
• consolidate JavaScript detection and remove redundant detector outputs
• cover pull request and push events for experiments/, dev/log/, and docs/case-studies/

Reproduction

Before this change, a direct push containing only an excluded file still ran lint, tests, and other gated jobs because each condition included an unconditional push alternative. On pull requests, excluded .mjs, .js, and .md files could independently set extension outputs before the exclusion policy was applied.

The new regression fixtures create excluded-only commits for both pull request synthetic merges and direct pushes. They verify that every detector output remains false and that all change-gated workflow jobs evaluate to skipped.

Verification

• node --test --test-timeout=30000 tests/detect-code-changes.test.js tests/workflow-reliability.test.js
• npm test
• npm run check
• bash scripts/check-mjs-syntax.sh
• bash scripts/check-file-line-limits.sh
• GITHUB_BASE_REF=main node scripts/validate-changeset.mjs

[konard]

Working session summary

Implemented and finalized PR #114.

Key changes:

• Applied one ignored-path policy before computing all CI outputs.
• Removed unconditional push bypasses from change-gated jobs.
• Consolidated JavaScript detection and removed redundant outputs.
• Added PR/push regression coverage for experiments/, dev/log/, and docs/case-studies/.
• Added positive coverage ensuring normal source and documentation changes remain detected.
• Added a patch changeset.

Verification:

• Full local tests and checks pass.
• All nine Node/Bun/Deno × Linux/macOS/Windows CI jobs pass.
• Link checking, linting, changeset validation, syntax, and line-limit checks pass.
• PR is ready for review, mergeable, and the working tree is clean.

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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-5.6 Sol
• Provider: OpenAI
• Public pricing estimate: $4.888720

📊 Context and tokens usage:

• 164.4K / 200K (82%) input tokens, 12.2K / 128K (10%) output tokens

Total: (164.4K + 2.7M cached) input tokens, 12.2K output tokens, $4.888720 cost

🤖 Models used:

• Tool: OpenAI Codex
• Requested: gpt-5.6-sol
• Thinking level: low (~7999 tokens)
• Model: GPT 5.6 Sol (gpt-5.6-sol)

📎 Log file uploaded as Gist (1526KB)

• 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]

🎉 Auto-merged

This pull request has been automatically merged by hive-mind.

• All CI checks have passed

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Auto-merged by hive-mind with --auto-merge flag