Second slice of the Welcome surface. Operator-facing
documentation now lives inside Studio as bundled assets and
renders inline via a modal sheet — no browser, no external
link, air-gap-tauglich.
- Four operator-readable explainers under `assets/docs/`,
each with an EN + DE pair:
architecture[_de].md — Hub / Module / Flow + how they fit
security[_de].md — sandbox model, declared perms,
operator ceiling
audit[_de].md — hash-chained log, WORM-1 mechanics,
`fai admin verify-events`
flows[_de].md — flow YAML, templating reference,
extract→summarize example
These are short (≈ 300-500 words each), operator-shaped
prose. Not copies of the architecture docs in
fai_platform/docs/architecture/ — those are
contributor-dense.
- pubspec.yaml declares `assets/docs/` so the markdown ships
inside the Studio binary. Air-gap deployments read them
with no network access.
- New `_DocReaderSheet` modal: 85 %-of-viewport bottom sheet,
drag handle + title bar with the doc icon and close button,
scrollable Markdown body styled to match Studio chrome.
Loads `assets/docs/<slug>_<locale>.md` first, falls back to
the EN file. Locale comes from
`Localizations.localeOf(context)`.
- `_DocsRow` on the Welcome page sits below the trust-posture
deck. Two-column grid on ≥ 640 dp, single column below.
Each card is icon + title + one-line blurb + chevron;
click opens the reader sheet for that slug.
- 12 new ARB keys for the docs section (header, blurb, four
card titles + blurbs, close button, error message).
- 4 new icons reused: `account_tree_outlined` (architecture),
`shield_outlined` (security), `verified_outlined` (audit),
`alt_route_outlined` (flows).
Implements Phase B of `docs/landing-page-design.md`. Phase C
(live getting-started checklist with persistent state) is the
last remaining slice.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
First slice of the new sidebar destination outlined in
docs/landing-page-design.md. Static content only — embedded
docs (Phase B) and the live getting-started checklist
(Phase C) follow.
Phase A:
- New `WelcomePage` at `lib/pages/welcome.dart`, registered
as sidebar slot 0 above Doctor. Default selectedIndex stays
0, so a fresh launch lands on Welcome.
- Hero card: gradient backdrop matching the Today-Hero in the
store, F∆I Platform headline, subtitle taken from CLAUDE.md
("deterministic workflow engine for AI-assisted document
processing in regulated environments").
- Three-pillar row "Hub / Module / Flow" — operator-readable
prose, not architecture-doc dense. Stacks to a column under
640 dp window width so card text never gets cropped.
- Trust-posture deck — "Sandbox by default", "Tamper-evident
audit log", "Air-gap ready". Same content that used to
rotate as carousel slides in the store; reading them as a
single deck with full prose works better than rotating
through fragments.
- AppBar follows the same `titleSpacing: FaiSpace.xl`
alignment as the Store so the title sits flush with the
body padding.
- 13 new ARB keys for the page content (EN + DE).
Smoke test now expects "Welcome" in the navigation rail; the
existing `Doctor / Store / Flows / Audit / Approvals`
expectations stay unchanged.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
