Julien Gautier f776ce732a feat(ci): assert gzip transfer sizes against ADR-0017 budgets
Angular CLI's `budgets` only compare RAW sizes — there's no native
gzip-mode budget. ADR-0017 specifies thresholds in gzip-transfer
terms (initial bundle ≤ 300 KB gzip, any lazy chunk ≤ 100 KB gzip,
total stylesheet ≤ 150 KB gzip), so the project.json values today
are an approximate raw-size translation. The follow-up flagged in
ADR-0017's confirmation list — a CI check that asserts the actual
gzipped transfer size — lands here.

`scripts/check-gzip-budgets.mjs`:

- Parses Angular's emitted index.html to separate initial assets
  (anything referenced via src=/href=) from lazy chunks (the rest).
- Gzips every JS / CSS file at level 9 — what most HTTP servers
  serve for static assets — and reports a per-file + per-bucket
  size table.
- Compares against the ADR-0017 budgets and exits non-zero on any
  breach. Plain Node, no deps; ~120 lines.

Wired through:

- `pnpm ci:gzip-budgets` invokes the script with the default dist
  path (`dist/apps/portal-shell/browser`).
- `ci:perf` chains build → gzip check → Lighthouse, so a
  budget breach short-circuits before Lighthouse even runs (saves
  several minutes on a failing PR).

ADR-0017 §Confirmation updated: the previous "future follow-up
will add a CI check" line is replaced by a description of how the
script works, with a link to it.

Verified locally on the production build:
- Initial JS total: 92.88 KB / 300 KB budget ✓
- Lazy chunks largest: 1.38 KB / 100 KB per-chunk budget ✓
- CSS total: 3.35 KB / 150 KB budget ✓
2026-05-14 16:17:35 +02:00

Documentation index

This is the entry point to all project documentation. It is maintained automatically: any addition, rename, or removal of a .md file under docs/ must be reflected here in the same change.

Conventions

  • Documentation is written in English.
  • One topic per file. Group related files into a folder when there are three or more.
  • Cross-reference with relative links so they keep working in GitHub, IDEs, and exported sites.
  • For architectural decisions, do not add them here — they belong in decisions/ as MADR 4.0.0 ADRs.

Sections

Daily development

  • development.md — repo layout, prerequisites, initial setup, daily commands, observability dev-loop (Jaeger UI, log ↔ trace correlation), dependency updates (Renovate), conventional commit cycle. Day-to-day reference for working on the project.

Architecture

  • architecture.md — cross-cutting Mermaid diagrams: C4 system context, C4 containers, Nx module boundaries, CI/CD pipeline. Single-decision diagrams (auth sequence, ERD, etc.) live inline in their ADR.

Onboarding & environment

Setup guides for new contributors:

Operations & runbooks

Empty — to be populated when we deploy.

Security, performance, accessibility

Empty — placeholders to be filled with rationale docs alongside their corresponding ADRs.

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