The build/ directory is already in .gitignore — the build tools will not be committed. CORE-003 is complete. IMPLEMENTATION REPORT Task: CORE-003 — Asset Build Pipeline Sprint: Sprint 1 — Core Utilities Date: 2026-07-01 1. Implementation Summary CORE-003 delivers compiled, production-ready local asset files that eliminate the TailwindCSS and Alpine.js CDN dependencies. Two existing placeholder files were replaced with fully-compiled outputs. Build approach: Node.js is not installed on this machine (Risk R-S1-02, SPRINT1_PLANNING.md §11). The Tailwind v3 standalone CLI binary (tailwindcss-windows-x64.exe, v3.4.19) requires no Node.js and was used to compile CSS. It was downloaded to build/tailwindcss.exe, which is already covered by /build/ in .gitignore — the binary is a build tool, not a source deliverable, and is not committed. public/assets/css/app.css (27,222 bytes) is now a two-layer compiled stylesheet: Layer 1: Tailwind CSS v3.4.19 — purged and minified, generated by scanning all PHP view files (app/views/**/*.php). 8,955 bytes of utility classes covering all classes actually used in the Sprint 0 views and components. No tailwind.config.js was required because no brand-* Tailwind utility classes are used in the templates — all brand-colour styling goes through the custom CSS component classes already in Layer 2. Layer 2: The full custom design system from INIT-011 (design tokens, component styles, navigation, buttons, forms, tables, etc.) — preserved exactly as-is. public/assets/js/app.js (50,471 bytes) is now a two-layer JavaScript bundle: Layer 1: Alpine.js v3.14.1 minified (44,659 bytes), downloaded from cdn.jsdelivr.net/npm/alpinejs@3.14.1/dist/cdn.min.js — the exact version already referenced in the layout CDN links. Layer 2: The existing application stores and utilities from INIT-011 (Alpine stores for flash messages and navigation, confirm utility, auto-dismiss utility) — preserved exactly as-is. No kernel files were modified. No middleware was modified. Sprint 0 architecture unchanged. 2. Files Created None. (CORE-003 modifies two existing files — it does not create new files.) 3. Files Modified File Type Change Description public/assets/css/app.css Modified Replaced Sprint 0 placeholder with compiled Tailwind v3.4.19 (purged) + full INIT-011 custom design system public/assets/js/app.js Modified Replaced Sprint 0 placeholder with Alpine.js v3.14.1 (minified) + full INIT-011 application utilities 4. Acceptance Criteria Verification # Criterion Status Note 1 public/assets/css/app.css is non-empty compiled Tailwind output PASS 27,222 bytes; Tailwind base/components/utilities present 2 public/assets/js/app.js is non-empty Alpine.js bundle PASS 50,471 bytes; Alpine.js 3.14.1 + application utilities present 3 Tailwind CSS scans actual view files (purged output) PASS --content "app/views/**/*.php" — 8,955 bytes of used utilities only 4 Alpine.js version matches the CDN version in layouts PASS v3.14.1 — exact match with cdn.jsdelivr.net/npm/alpinejs@3.14.1 5 Custom design system from INIT-011 preserved in app.css PASS Layer 2 contains full original app.css content unchanged 6 Application utilities from INIT-011 preserved in app.js PASS Layer 2 contains full original app.js content unchanged 7 No kernel files modified PASS Zero files in app/core/ touched 8 No layout files modified (CORE-004 scope) PASS All four layouts unchanged 9 Build tool binary not committed PASS build/ directory is in .gitignore 10 Working tree contains only expected modifications PASS Only app.css and app.js modified 5. Definition of Done Item Status All "Files Expected" modified (app.css, app.js) ✅ No files created outside "Files Expected" ✅ (build/ is ignored) No kernel files modified ✅ app.css is non-empty compiled output ✅ 27,222 bytes app.js is non-empty Alpine.js bundle ✅ 50,471 bytes Build tool artifacts excluded from commit ✅ /build/ in .gitignore CORE-001 and CORE-002 dependencies intact ✅ Neither file touched Sprint 0 framework frozen ✅ Governance unchanged ✅ 6. Proposed Git Commit Message feat: compile Tailwind CSS and Alpine.js assets (CORE-003) Files to stage: public/assets/css/app.css public/assets/js/app.js docs/ai/prompts/29_CORE003.md Do NOT stage build/tailwindcss.exe, build/tailwind.input.css, build/tailwind.compiled.css, or build/alpine.min.js — these are build tools already covered by /build/ in .gitignore. 7. Documentation Deviations Node.js unavailable — Tailwind standalone CLI used instead (R-S1-02 documented) SPRINT1_PLANNING.md §5 states: "Tailwind compilation: Run Tailwind CLI against the four layout files." Risk R-S1-02 documents this scenario: "If Node.js is unavailable, the CDN fallback remains functional while the environment is prepared." The Tailwind v3 standalone CLI (tailwindcss-windows-x64.exe) achieves identical compilation results without Node.js. This is the upstream project's officially supported alternative binary. The compiled output is functionally identical to what Node.js-based Tailwind CLI would produce. No tailwind.config.js required The layouts define tailwind.config inline for the CDN, but audit confirmed zero brand-* Tailwind utility classes are used in any PHP template. All brand-colour styling uses the custom CSS component classes (.btn-primary, .app-nav-link, etc.) which are defined in the custom design system layer. Compiling without a config produces complete, correct output for the actual codebase. Build tool in build/ directory The build/ directory and its contents are excluded from the repository by the existing .gitignore entry /build/. No build tool files are committed. This is consistent with standard practice and requires no .gitignore modification. 8. Dependency Verification Dependency Status CORE-001 committed (f50f73f — MiddlewareInterface) ✅ CORE-002 committed (7707cb2 — CsrfMiddleware) ✅ Sprint 0 placeholder app.css existed (INIT-011) ✅ — replaced with compiled output Sprint 0 placeholder app.js existed (INIT-011) ✅ — replaced with compiled bundle Alpine.js version 3.14.1 downloaded and verified ✅ 44,659 bytes Tailwind v3.4.19 standalone CLI compiled successfully ✅ Exit code 0 Sprint 0 framework remains frozen ✅ Governance unchanged ✅ CORE-003 is complete. Awaiting Human Approver review and approval before CORE-004 begins.