The free-form key=value run-flow dialog produced two
unhelpful failures every time an operator hit Run:
1. Submit empty → "step references missing value
'\$inputs.document'" from the hub. Studio sent a zero-
entry inputs map because nothing told the operator the
flow declared a required input.
2. Type `document=@/path/to/file` → "path not found".
Dart's `File()` doesn't expand `~`, and on macOS
sandboxed Studio can't read arbitrary paths anyway.
Both failure modes are gone. The dialog is now a typed form:
- On open, fetches `getFlowDefinition(name)` (new SDK
v0.15.0 wrapper around the v0.10.89 hub RPC). While that
resolves, a small spinner shows
"Loading inputs…"; on failure, an inline `FaiErrorBox`
with the exact RPC error and a copy button replaces the
spinner.
- Renders one form-field per declared input. The flow
YAML's verbatim type tag drives the widget choice:
`bytes` / `file` → "Choose file…" button + picked-file
readout, plain TextField for everything else. The type
tag is shown next to the input name as a pill so a flow
author who picks a less-common type still gets a hint.
- Bytes inputs route through `file_picker` with
`withData: true`, which means the OS file dialog handles
read access — sandboxed Studio gets the bytes inline
rather than a path it can't open. Falls back to
`File(path).readAsBytes()` on Linux configs that don't
honour `withData` for large files; failures show a
copyable SnackBar.
- The Run button enables only when every declared input has
a value (text non-empty / file picked). Empty submission
is impossible; the cryptic hub-side
"missing value" error stops surfacing.
- The run-result dialog's error path uses `FaiErrorBox`
instead of the previous plain `SelectableText`, so any
hub-side flow error (permission denied, module crash,
whatever) is one click to clipboard.
11 new ARB keys cover the form's labels, the file-picker
states, the loading / failed-definition messages, the
"This flow declares no inputs" empty state, and the
run-error dialog title.
`file_picker: ^8.0.0` added to pubspec.yaml.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Three concrete fixes against today's user feedback.
- Flows that take binary inputs (extract / extract-summarize /
…) work from the Flows tab. The run-flow input dialog now
accepts the same `@/path/to/file` syntax `fai run --input`
uses on the CLI: any value beginning with `@` is read as
bytes and sent as a binary Payload; plain values still flow
through as text. The dialog hint copy and the example
placeholder reflect the new syntax. File-read failures
surface as a SnackBar before the run dialog opens, so a
typo in the path doesn't reach the hub. Threaded through
`_FlowRunDialog` and `HubService.runSavedFlow`, which both
carry separate `textInputs` and `fileInputs` maps now and
forward to the SDK's mixed-mode runSavedFlow (v0.14.0).
- The Welcome doc-reader's error path uses `FaiErrorBox` so
the actual underlying error is selectable + copy-to-
clipboard via the existing widget. Plus the loader throws
a richer error string that names *both* attempted asset
paths (`<slug>_<lang>.md` and the EN fallback) and the
underlying exception each, so the operator can paste a
diagnostic into a chat without us having to ship a
separate "how to read Flutter asset errors" doc.
- Doctor's empty Services panel had a horizontal RenderFlex
overflow at narrow widths because the long mono-spaced
hint ("add to ~/.fai/config.yaml under services:") and
the leading icon+text both demanded full intrinsic width
in a single Row. Now wraps via a `Wrap` widget so the
hint flows to a second line on narrow viewports and stays
in the same row when there's space.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Three fixes against the v0.39.0 user feedback.
- Layout exception "BoxConstraints forces an infinite
height". `_PillarRow`'s wide-window path used
`Row(crossAxisAlignment: CrossAxisAlignment.stretch)`
inside a `Column` inside a `SingleChildScrollView` — Row
inherits unbounded height, can't stretch to anything,
Flutter throws. Wrapped the Row in `IntrinsicHeight` so
the Row's height is bounded to the tallest child first.
Same shape `_DocsRow`'s narrow-window path was triggering
with `Wrap` + `SizedBox(width: double.infinity)` — replaced
with a plain `Column` for that path; the wide path keeps
the Wrap with the proper finite cardWidth.
- Dropped the "WIE ES ZUSAMMENPASST" / "HOW IT FITS
TOGETHER" section header. Operator-feedback was that the
label sounded like a question without an answer. The hero
already establishes the page; the three Hub/Module/Flow
cards are self-explaining beneath it. Header was visual
clutter and the underlying ARB keys are gone.
- Reordered the sidebar: Welcome, **Store**, Doctor, Flows,
Audit, Approvals. Store is the operator's daily-use
surface and belongs above Doctor (which is a diagnostics
page). Welcome stays slot 0 as the first-launch landing.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Final slice of the Welcome surface. Four steps that prove
the operator has the basic loop wired up; each step is
a live probe against the running hub, no manual ticks.
The four checked signals:
1. System AI configured
→ `HubService.systemAiStatus().enabled`
2. Public capability source added
→ `listMcpClients()` returns at least one entry
3. Text module installed
→ `listModules()` contains a name starting with `text.`
4. Saved flow run
→ any `flow.completed` event in the last 100 audit
events
All four probes fire in parallel from `_OnboardingChecklist`'s
`_refresh()`. Failures stay false (catchError) so a hub that
is briefly unreachable doesn't blank the whole row — the
operator hits the explicit Refresh icon to retry.
UX:
- Renders between hero and pillars so the actionable path
beats the educational content for screen real estate.
- Each row: status icon (○ pending / ✓ done) + title +
one-line hint pointing the operator at the right Studio
surface + status pill.
- Done rows strike-through the title and dim it; pending
rows stay full-strength.
- When all four flip to done, an "All four steps complete"
footer appears with a `Hide checklist` button. Clicking
persists `welcome.checklist.dismissed = true` via
SharedPreferences; the section is gone for good (we don't
re-nag operators who chose a non-default path).
15 new ARB keys for the section header, body, four rows
plus done/pending pills, all-done footer, dismiss /
refresh / refreshing button labels.
Three-phase plan from `docs/landing-page-design.md` is now
fully shipped: Phase A scaffolding (v0.37.0), Phase B
embedded doc reader (v0.38.0), Phase C live checklist
(v0.39.0).
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
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>
Modules-as-a-tab was redundant with the Store after the
"Installed" filter and the federation work landed. Two pieces
of unique content kept it alive: the per-module declared
permissions list and the on-disk module directory. Both now
live inside the Store detail sheet.
Changes:
- Sidebar nav loses the Modules entry. `_pages` no longer
carries a `'modules'` slot. The unused `import
'pages/modules.dart'` is dropped from main.dart. Smoke test
updated to skip the Modules-text expectation.
- Store detail sheet (`_StoreDetailSheet`) gains two new
sections, rendered only when the entry is installed and the
hub returned `ModuleDetail` for it:
Declared permissions → same icon-prefixed list the
old Modules sheet shipped
(`net:`, `fs.read:`, `fs.write:`,
`env:`, `hub:`).
Module directory → selectable mono path so the
operator can paste it into a
shell.
An async `moduleInfo` fetch fires from `initState` only when
`widget.item.installed` is true, so the regular
not-installed detail-sheet path takes no extra round-trip.
Failures stay silent — the sections just hide.
- The `FaiModuleSheet` widget stays intact. Cmd+K still uses
it as a quick-info modal for installed modules; the
longer-form Store detail sheet covers the same data plus
the description, screenshots, and docs that operators
reach for in the Store.
Three new ARB keys: `storeSectionPermissions`,
`storeSectionDirectory`, `storeSectionPermissionsNone`.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Sweeping pass against six user reports collected this session.
1. "Capabilities ist nicht deutsch, Chain auch nicht."
The DE locale still leaked English vocabulary. Replaced
"Capabilities" → "Fähigkeiten" and "Chain" / "Hash-Chain"
→ "Kette" / "Hash-Kette" everywhere — store search hint,
recommended-source body, federated toast, doctor summary
chain row, modules panel summary, MCP / n8n hints, the
approvals history blurb. Wire-level identifiers
(`chain.reset`) stay as code.
2. "Bei Fehlern unten muss man die auch ins clipboard
kopieren können." New `FaiErrorBox` widget: selectable
monospace block with a small copy-to-clipboard icon
button that flips to a checkmark for two seconds after
click. Applied to the Doctor update banner output and
the Settings channel toast — the two places long
stderr / stdout lands.
3. "Öffnen bei Log kann es nicht öffnen. Audit-DB auch
nicht. PID auch nicht."
Cause: `SystemActions.openInOs` shells out to `open` /
`xdg-open` on file paths the OS has no default handler
for (SQLite DB, PID file, log without an .ext that
binds). New `revealInOs` uses `open -R` on macOS,
`explorer /select,` on Windows, and the parent
directory via `xdg-open` on Linux. Doctor's path rows
carry an `isDirectory` flag that routes through the new
`openOrReveal` so files reveal in Finder / Explorer
instead of failing silently.
4. "Oben im Store könnte man diesen Redaktionshinweis auch
so bauen, dass man mit pfeil nach rechts links auch
weitere anzeigen kann."
The Today-Hero became a carousel. Curated fallback
list grew from one entry to four (public sources, the
sandbox-by-default permission story, the hash-chained
audit story, the air-gap-ready single-binary pitch).
Hero gets prev / next chevrons plus a dot indicator
when the current snapshot has more than one slide.
Operator-accepted stories stay single — the carousel
collapses when there's only one to show.
5. "Ich fände es schöner wenn rechts und links im Store
die Abstände konsistent sind, das Reload-Symbol rechts
ist zu weit rechts und Store links auch nicht bündig."
AppBar now has `titleSpacing: FaiSpace.xl` so the
title's left edge sits flush with the body's left
padding (24 dp), and the trailing `SizedBox` after the
reload icon shrunk so the icon's outer edge meets the
right edge of the rightmost grid card.
6. "Oben der Titel zeigt fai_studio an, das sollte F∆I
Studio sein." The OS window title was the
pubspec-derived "fai_studio". Macos/Linux/Windows
runners now hard-code "F∆I Studio" (with the U+2206
triangle escape so the C++ source stays ASCII). macOS
bundle name and display name lifted out of the
PRODUCT_NAME variable for the same reason.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Two reports:
1. "In Diagnose ist viel nicht übersetzt, wie pending, chain
etc." The Doctor summary strip (Modules / Approvals / Audit
/ Services tiles) and the modules panel still rendered
English wire labels: "pending", "chain", "declared",
"loaded", "empty", "attention", "No pending approvals",
"No host services declared", and the matching "{n} modules
· {m} capabilities" / "{n} approvals awaiting review"
strings.
Fix: 13 new ARB keys covering the summary tiles, modules
panel, and services panel; doctor.dart now reads them via
AppLocalizations. German operators no longer see English
labels on Diagnose.
2. "Im Light mode ist der kontrast zur überschrift falsch,
store ist weiß auf weiß." The AppBar title rendered
white-on-white in light mode.
Cause: `appBarTheme.titleTextStyle = textTheme.headlineSmall`
passed a TextStyle built fresh from GoogleFonts.inter(...)
with `color: null`. Material's "merge foregroundColor at
draw time" path didn't always populate it — depended on
build configuration. The colour fell through to whatever
the surrounding DefaultTextStyle had, which on the
light-mode AppBar was the surface colour.
Fix: bake the foreground colour straight into the title
style via `copyWith(color: scheme.onSurface)`. Also pin
`iconTheme: IconThemeData(color: scheme.onSurface)` so
actions-row icons get the same treatment defensively.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
The store had three structural problems flagged in user
feedback:
1. "Lernkurve zu hoch — alle bridge, debug, alpha, planned,
keiner weiß was das heißt." Wire-level enum values bled
through into the UI: `bridge`, `debug`, `published`,
`alpha`, `planned`. Operators don't share the data model.
2. "Filter / Kategorien sollten oben in die Leiste neben Store
zum ausklappen, der Body soll übersichtlicher werden." A
chip-row plus category strip plus result-count line ate a
full row of viewport on every screen.
3. "Suche passt besser an den unteren Bildschirmrand." The
chat-style ask bar belongs at the bottom — Claude / ChatGPT
/ Slack pattern — not at the top where it competes with
the Today hero.
Plus: "Es gibt noch ganz viele overflows in den Beschreibungen."
Changes:
- Plain-language display names. New ARB keys for category
labels (Connectors / Sample modules / AI models / Storage /
Channels / Authentication / Orchestration / …) and updated
status values (stable / experimental / coming soon). Wire
ids stay in StoreEntry, RPCs, seed.yaml — only the rendered
pills and dropdowns get translated. Helpers
`_categoryDisplayName` and `_statusDisplayName` keep the
mapping in one place.
- Toolbar moves into the AppBar. The new `_CategoryDropdown`
hosts the category picker as a popup-menu with localised
labels; the existing `_FilterButton` lives next to it; the
reload icon stays where it always was. The body no longer
carries any chip strip or result-count line.
- Bottom-anchored `_AskBar`. The Scaffold body becomes a
Column of `Expanded(scrollable content)` plus a pinned
composer row at the foot of the viewport, with a top
divider matching the chat-input pattern of modern AI
assistants. AI answers now render at the top of the scroll
(above the Today-Hero) so the operator sees them right
after submitting the question at the bottom.
- Overflow sweep on descriptions. Today-Hero header row
becomes a Wrap (badge + deck flow naturally on narrow
windows), the title is bound to 3 lines, the body to 6.
Card category text gets `maxLines: 1, ellipsis` in both
StoreCard and FeaturedTile. Recommended-source card title
gets the same treatment.
- Better toast for the "added but zero capabilities" path.
When MCP discovery succeeds but returns no tools (typical
Streamable-HTTP servers without Mcp-Session-Id support, or
servers that need `notifications/initialized`), the toast
now explains the situation in plain language and points
the operator at Settings → MCP Clients to retry. Old
pluralised toast still fires when N > 0.
Hub-side `notifications/initialized` for HTTP MCP and
Mcp-Session-Id support are out of scope for this commit;
tracked as a separate fai_hub follow-up.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Three changes against the user feedback "der text ist zu
zerhackt, die filter-leiste nimmt zu viel sicht weg, llm-suche
wenn das geht":
1. Today-Hero copy rewritten in flowing prose. The fallback
story drops the code-fence templates ("`mcp.<server>.<tool>`")
and reads as a single arc per language. Same trust model,
gentler register.
2. Filter row collapses behind a single `_FilterButton` with a
"Filter · N active" count badge. Status / Source / Installed
chips now live inside `_FilterDialog` — invisible until the
operator wants them, recovers a full row of viewport. The
category strip stays inline because category is the most
common cut and benefits from being one click away.
3. New `_AskBar` replaces the old single-line `_SearchField`:
- Multi-line input (1-4 lines auto-grow) so questions don't
overflow horizontally.
- Cmd+Enter / Ctrl+Enter submits; bare Enter inserts a
newline so the operator can write multi-line questions
naturally.
- Heuristic question detector (ends in `?` or ≥4 words)
routes the submit to the System-AI's askAi RPC instead of
the substring search. Live keystrokes still keyword-search
for short queries; question-shaped input holds the grid
steady until submit so the visible result set doesn't
wipe with every space.
- The LLM is asked for a strict-JSON ranking of up to 5
modules with a one-phrase reason each. Unknown module
names are dropped silently — operators must not see
hallucinated entries.
- The new `_AiAnswerCard` renders the LLM's answer plus the
ranked match list above the grid; the grid filters to
just those names so the answer and the visible cards
stay coherent. Clearing the question collapses everything
back.
- Falls back to plain keyword search when System AI is off
(with an explanatory hint instead of the AI hint).
The AI path uses the System-AI the operator already configured
in Settings; same privacy mode, same audit-log trail. Nothing
new leaves the hub.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
App-store research shows that the most loved discovery
surfaces — Apple's Today tab being the canonical example —
work because editors tell stories instead of stacking
algorithmic recommendations. F∆I has no surveillance budget
and no monetization pressure, so we lean fully into editorial
curation.
This commit adds `_StoreTodayHero`, the first surface a
browsing operator sees:
- Single curated story per release, kept const in
[_kCurrentTodayStory] so the narrative is reviewable in code
review and ships in the audit log via the binary hash. No
CMS, no network, no surveillance.
- Bilingual content shipped inline (`titleEn`/`titleDe`,
`bodyEn`/`bodyDe`) so KRITIS deployments don't need a
translation backend.
- Gradient backdrop with hero icon, deck, narrative paragraph,
optional CTA. Visual treatment matches Apple Today's
hierarchy: badge → headline → body → action.
- Auto-hides whenever a filter is active so a purposeful
search isn't pushed below the fold.
- Per-session dismiss button — no permanent suppression, the
next Studio launch shows it again so a release-bumped story
has a chance to be seen.
Current story (Studio v0.30.x) directs operators to the new
recommended-sources strip, closing the loop between editorial
context and one-click action.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
The Store is now the centre of capability discovery — provider
configuration moves out of Settings into the Store itself.
Three changes work together:
1. Source filter chips next to the existing status chips:
All sources / Native / MCP / n8n. Applied client-side after
the hub returns results so toggling is instant. The result
count and the "Clear filters" reset both account for the
source filter too.
2. Per-card provenance pill (`_ProvenancePill`): shows whether
each entry is native, mcp · <provider>, or n8n · <provider>
so the operator can triage the source at a glance — same
role the "verified" badge plays in commercial app stores.
3. `_RecommendedSourcesStrip` replaces the older
`_FederationNudge`. Renders curated public MCP servers
(DeepWiki, Semgrep) as one-click cards with an inline
`[+ Add]` button — no Settings detour, no form. Both servers
are HTTPS Streamable-HTTP, no API key, no subprocess.
Useful AI was considered but its 340+ tools would drown the
index — kept out of the curated list. The strip auto-hides
the moment any federated entry exists.
Removed the now-orphaned storeFederationNudge* ARB keys.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
- Localize Flows page: app-bar title and reload tooltip,
hub-unreachable / no-saved-flows empty states, run-flow input
dialog (title with flow name, description, hint, Cancel /
Run), running dialog (title, "Flow running…" status, no-output
message, Close button), flow-card Run button.
- Localize the module-sheet bottom sheet: failed-to-load text,
Capabilities and "Declared permissions" section headers,
no-permissions placeholder copy.
- Localize the System-AI configuration dialog: title, intro
paragraph, provider dropdown label, endpoint label, API-key
env-var label (required vs optional) and disclaimer, privacy
mode header and three options (Off / Redacted / Full) plus
their descriptions, test-result panel ("Connection ok" /
"Connection failed", "Reply: …" prefix), model picker (label,
hint fallback, helper text with Ollama variant, Refresh /
Pull / Pulling… buttons, list errors and empty states),
hardware banner ("Detected: …" + " · curation reviewed …"
suffix), suitability legend (recommended / balanced / small /
large / huge / unknown), cache row with pluralized count and
Clear button, cache cleared / clear-failed toasts, pull-empty
/ pull-failed errors. Suitability label moved off a getter
onto a `labelFor(BuildContext)` method so it can read the
current locale.
Provider preset descriptions and modelHint strings stay in
English in `_ProviderPreset.all` — they're tightly coupled to
the wire-protocol identifiers and would require a runtime
factory rebuild rather than a const list.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Two threads.
Translation expansion: every visible string on the Doctor
page (section headers, status text, button labels, daemon-
control card, daemon-files panel, update banner) and the
Modules page (recent-activity strip, capabilities label,
uninstall dialog + toast) flips between DE and EN with the
sidebar toggle. Adds ~50 ARB keys split between
`app_en.arb` / `app_de.arb`. Pluralised + parametrised
strings (`{n} events verified`, `Running on {name}: {endpoint}`)
use the standard ICU placeholder syntax so future locales
slot in without code changes.
Sparse-store federation nudge: the Store page renders an
inline banner above the grid when the operator has zero
federated entries — single biggest store-fullness lever is
configuring an MCP server / n8n endpoint, so the banner
says exactly that and the button opens Settings straight
to the editor. Banner dismisses automatically the next
render after a federated entry appears.
Coverage stand for translation: Doctor + Modules + sidebar
+ page titles + nav + Cmd+K labels are bilingual. Settings
dialog, Approvals cards, Audit drilldown, MCP/n8n editors,
Store search hint + filter chips remain English-literal.
The infrastructure (ARB plumbing, generator hookup,
locale-notifier) means each follow-up surface is a
one-line ARB edit + one call-site swap.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
Replaces the Store-only DE/EN toggle with an app-wide one
parked in the sidebar footer next to the theme button.
Pressing it flips every translated string at once: nav
labels, page titles, common buttons, the bilingual
store-index content.
Implementation:
- Adds `flutter_localizations` + `intl` to pubspec, plus
`flutter.generate: true` so `flutter gen-l10n` runs in the
build pipeline.
- ARB sources at `lib/l10n/app_en.arb` and `app_de.arb`. The
EN file is the template; DE carries the German strings.
Initial coverage: navigation, common buttons, page titles,
channels / store / audit / modules / approvals headers,
hub-unreachable copy, MCP + n8n panel headers + hints.
Rest of the UI strings are still English-literal — those
fall in incrementally as we touch each surface.
- Generated `AppLocalizations` lives at
`lib/l10n/app_localizations*.dart` (regenerated via
`flutter gen-l10n` on every ARB edit).
- `StudioAppState` gains `localeNotifier` alongside
`modeNotifier`; persisted via SharedPreferences key
`locale.code`.
- Sidebar `_LanguageToggle` reads/writes through the
notifier. The Store's per-page locale state is gone:
`_locale` now reads `Localizations.localeOf(context)
.languageCode`, so the bilingual store-index content
follows the global setting without a second toggle.
- `_NavPage.label` becomes `_NavPage.id` + `labelOf(context)`;
Cmd+K palette and Sidebar both read the localized label.
Out of scope this iteration: localizing the remaining
~80% of UI strings (Settings dialog labels, Store search
hint, error messages). Those land incrementally — the i18n
infrastructure now means each is a one-line ARB edit + one
call-site swap.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
