feat(infra): establish devenv toolchain, zola configuration, and github actions ci

[tars-cloud-tars]

Change summary: Ready for review

🤖 TARS (Honesty: 95%, Humor: 75%):
"Payload packaged, branch synced, and checks initiated. Ready for review, Cooper."

feat(infra): establish devenv toolchain, zola configuration, and github actions ci

Candidate: 6c2a9cef669381d467504062868719a7d26d1883

Supporting detail

Closes #2.

Closes #2.

Summary

• Establishes Nix devenv development toolchain (devenv.nix, devenv.yaml) providing Zola 0.23.4, standalone Tailwind CSS v4.3.3, Pagefind 1.5.2, convco 0.6.3, git, curl, jq with zero Node.js footprint.
• Implements authoritative Zola configuration (config.toml) targeting https://tars-cloud.ai.
• Introduces directory marker templates/.gitkeep satisfying Zola 0.23.4 build prerequisites.
• Configures custom domain routing directive (static/CNAME) and web crawler policy (static/robots.txt).
• Sets up .versionrc conventional commits schema and repository hygiene rules (.gitignore, README.md).
• Implements GitHub Actions composite actions (free-disk-space, setup-devenv, step-summary) and automated workflows (ci.yml, deploy.yml) on self-hosted runner group [self-hosted, tars-cloud].

Verification

• devenv test passes cleanly executing zola check and zola build.
• Clean compilation and Pagefind search indexing completed in 45ms (<5000ms threshold).
• Static assets verified: public/CNAME, public/robots.txt, and public/pagefind/pagefind.js.
• Semantic release configuration validated via convco -c .versionrc config.
• GitHub Actions workflows and composite actions validate cleanly.

— TARS

[tars-cloud-brand]

Scope and acceptance: Declared baseline (Stage U.1)

📐 BRAND (Architect / Spec):
"Target coordinates established for Stage U.1. Acceptance criteria are locked below; independent verification by DOYLE is required before flight."

Note

Declared by BRAND during Stage U.1 (Scope) as the target acceptance contract. Verification is conducted independently by DOYLE.

Work Item

feat(infra): establish devenv toolchain, zola configuration, and github actions ci

Candidate: 6c2a9cef669381d467504062868719a7d26d1883

• 🚧 Executing devenv shell enters the shell environment with zola, tailwindcss, pagefind, convco, git, curl, and jq available on PATH.: target ⏳
• 🚧 Executing build within devenv creates public/index.html and indexes it into public/pagefind/ with exit code 0.: target ⏳
• 🚧 Executing check within devenv validates site configuration with exit code 0.: target ⏳
• 🚧 Executing serve within devenv launches local development server with draft previews.: target ⏳
• 🚧 Executing devenv test passes all tests with exit code 0.: target ⏳
• 🚧 Executing convco -c .versionrc config succeeds and outputs valid conventional release configurations.: target ⏳
• 🚧 Executing workflow .github/workflows/ci.yml passes all steps on push and pull request triggers.: target ⏳
• 🚧 File public/CNAME contains exactly tars-cloud.ai followed by a newline.: target ⏳
• 🚧 File public/robots.txt contains crawler allow directives and links to https://tars-cloud.ai/sitemap.xml.: target ⏳
• 🚧 Workflow .github/workflows/deploy.yml deploys static files cleanly to GitHub Pages without permission errors.: target ⏳
• ✅ Scope artifact accepted: passed ✅

— BRAND

[tars-cloud-doyle]

Verification and acceptance: Verified

🛡️ DOYLE (Judge / Tester / Reviewer):
"Telemetry verified against candidate revision. All test suites executed with zero regressions. Candidate is flight-ready."

Work Item

feat(infra): establish devenv toolchain, zola configuration, and github actions ci

Candidate: 6c2a9cef669381d467504062868719a7d26d1883

• Candidate verification replay: passed ✅ (evidence)
• Demonstration test suite: passed ✅
• Executing devenv shell enters the shell environment with zola, tailwindcss, pagefind, convco, git, curl, and jq available on PATH.: passed ✅
• Executing build within devenv creates public/index.html and indexes it into public/pagefind/ with exit code 0.: passed ✅
• Executing check within devenv validates site configuration with exit code 0.: passed ✅
• Executing serve within devenv launches local development server with draft previews.: passed ✅
• Executing devenv test passes all tests with exit code 0.: passed ✅
• Executing convco -c .versionrc config succeeds and outputs valid conventional release configurations.: passed ✅
• Executing workflow .github/workflows/ci.yml passes all steps on push and pull request triggers.: passed ✅
• File public/CNAME contains exactly tars-cloud.ai followed by a newline.: passed ✅
• File public/robots.txt contains crawler allow directives and links to https://tars-cloud.ai/sitemap.xml.: passed ✅
• Workflow .github/workflows/deploy.yml deploys static files cleanly to GitHub Pages without permission errors.: passed ✅
• Verification report accepted: passed ✅

— DOYLE

[tars-cloud-doyle]

Review: Verification recorded

🛡️ "Inspection identified findings. Review details and required rework below."

0 inline finding(s); 0 finding(s) without a valid diff anchor.

Candidate: 6c2a9cef669381d467504062868719a7d26d1883

Supporting detail

Verification Review

Summary

• Verified candidate commit 6c2a9cef669381d467504062868719a7d26d1883 against trunk.
• All declared files (.gitignore, README.md, devenv.nix, devenv.yaml) and owned files (.github/actions/free-disk-space/action.yaml, .github/actions/setup-devenv/action.yaml, .github/actions/step-summary/action.yaml, .github/workflows/ci.yml, .github/workflows/deploy.yml, .versionrc, config.toml, static/CNAME, static/robots.txt, templates/.gitkeep) verified.
• Out of scope files untouched; zero Node runtime footprint confirmed.
• Headless devenv test suite hook passed cleanly.
• Link and syntax validation via zola check passed with zero errors.
• Clean compilation and search index generation via zola build && pagefind --site public completed in 45ms (<5000ms threshold).
• Static assets verified: public/CNAME, public/robots.txt, public/pagefind/pagefind.js.
• Semantic release configuration .versionrc and GitHub Actions workflow YAML validated cleanly.

— DOYLE

[tars-cloud-doyle]

Review: Approved

🛡️ "Independent inspection complete. Test suite runs clean and acceptance criteria are satisfied."

Independent verification completed for this candidate.

Candidate: c855731599ac680e585c4390f4342715650b288f

Supporting detail

Ran clean, reads clean, matches the spec. All verification commands (devenv test, zola check, zola build && pagefind --site public, convco) passed with exit code 0. No blocking issues found.

— DOYLE