Second half of the May-2026 trust pass. Drops the wall of
gRPC trailers from every error surface and makes the Store
honest about what is and isn't installable.
Friendly errors:
- New `friendlyError(Object, AppLocalizations)` mapper turns
GrpcError + arbitrary throwables into a localised headline,
optional recovery hint, and a verbatim detail string kept
behind a "Show details" expander. Duck-typed on `.code` /
`.message` so Studio doesn't have to depend on package:grpc
directly.
- `FaiErrorBox` gains an `error:` constructor that runs the
mapper. Every call site that used to render
`snap.error.toString()` (flows, welcome, store) switches to
it.
- 9 .arb entries per locale cover the gRPC codes we actually
emit (INVALID_ARGUMENT, NOT_FOUND, ALREADY_EXISTS,
PERMISSION_DENIED, FAILED_PRECONDITION, INTERNAL,
UNAVAILABLE, UNAUTHENTICATED) plus copy/details affordances.
- `test/friendly_error_test.dart` — 6 unit tests for the
mapper. Covers the mapping table, locale-switching, and the
non-gRPC fallback so future regressions show up in CI.
Capability discovery:
- New `HubService.allCapabilities()` reads the kind-aware
capability list (wasm + builtin + federated) and returns a
Dart-side `CapabilityInfo` value type. The flow page's
missing-dependency check uses it so `system.approval` and
federated MCP/n8n tools count as "available" — fixes the
Run button staying disabled forever.
- `HubService.listModules()` filters to kind=wasm so the
Modules page doesn't sprout synthetic "system" entries that
the operator can't uninstall.
Store clarity:
- New "Installable only" filter, on by default. Roughly 2/3
of seed entries currently carry `status: planned`; the
default view stops being noise.
- Featured-strip cards for planned modules now show a
"Coming soon" pill instead of an empty action area.
- Main-grid cards for non-installable modules dim to 60%
opacity so the eye lands on actionable cards first.
- Detail-sheet "Nicht installierbar" tooltip → inline hint
box. The reason is visible without hovering.
MCP localisation:
- `_kMcpSuggestions` no longer holds 11 hardcoded English
description strings. The `description` field is replaced
with a `resolveDescription(AppLocalizations)` lookup that
switches on the suggestion `name` to read the matching
`mcpSuggestion*Desc` .arb key. EN + DE shipped.
- New `FaiEnBadge` widget renders a small `[EN]` pill when
the active locale isn't English. Used next to MCP /
federated store entries' tagline + description because
the server supplies them in English and we can't translate
on the fly yet — the badge is the honest signal until the
planned `studio.translate` plugin lands.
Plus housekeeping: removed the unused `_keepImport` lint
escape in the test and the dangling library doc-comment in
`format.dart`.
Signed-off-by: flemming-it <sf@flemming.it>
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
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