refactor(tools): rename tool/ to tools/

Move the developer scripts directory to the plural tools/, matching the
existing test/ mirror layout, and update every reference: the makefile
integration-test target, .gitignore aggregator note, the integration_test
comment, the AGENTS.md l10n pointer, and the in-file usage strings of
arb.dart and gen_all_test.dart.

Author: ethicnology

.gitignore

@@ -115,7 +115,7 @@ CLAUDE.md
 # sentry-native build artifacts pulled by sentry_flutter on Linux
 .sentry-native/
 
-# Generated integration-test aggregator (see tool/gen_all_test.dart)
+# Generated integration-test aggregator (see tools/gen_all_test.dart)
 integration_test/all_test.dart
 
 # Generated swap debug log export (written during test runs)

AGENTS.md

@@ -171,7 +171,7 @@ Workflow when you need a widget:
 3. **If genuinely new and reused by ≥ 2 features**, put it in `lib/core/widgets/<category>/` from the start — that *is* growing the UI Kit.
 4. **If used by exactly one feature**, it lives in `<feature>/ui/widgets/` — but write it composable enough to be promoted later (no hardcoded colors, no hardcoded text, take callbacks not bloc refs).
 5. **Widgets never live under `adapters/`, `frameworks/`, `domain/`, or `application/`.** UI goes in `ui/` or `lib/core/widgets/`. Full stop.
-6. **No hardcoded user-facing strings.** Always `context.loc.<key>` — the `BuildContext` extension (`build_context_x.dart`) that wraps `AppLocalizations.of(context)`; it is the dominant convention (≈2564 uses vs 3 raw `AppLocalizations.of`). Manage keys in [`localization/`](localization/) with [`tool/arb.dart`](tool/README.md) (`fvm dart run tool/arb.dart help`) — don't hand-edit the `.arb` files — then run `make translations`. A duplicated literal across screens means a missing l10n key.
+6. **No hardcoded user-facing strings.** Always `context.loc.<key>` — the `BuildContext` extension (`build_context_x.dart`) that wraps `AppLocalizations.of(context)`; it is the dominant convention (≈2564 uses vs 3 raw `AppLocalizations.of`). Manage keys in [`localization/`](localization/) with [`tools/arb.dart`](tools/README.md) (`fvm dart run tools/arb.dart help`) — don't hand-edit the `.arb` files — then run `make translations`. A duplicated literal across screens means a missing l10n key.
 7. **Theme tokens only** — colors, spacing, typography pulled from the theme. See rule #10 above.
 
 When you spot a duplicate of an existing core widget in feature code, flag it in the PR description as a follow-up cleanup. Don't silently leave it. Don't fix unrelated duplicates in the same PR either — that breaks atomic commits.

integration_test/coins_test.dart

@@ -33,7 +33,7 @@ import 'package:flutter_test/flutter_test.dart';
 //      wallet's real UTXOs and asserts the confirmations/labels fields the view
 //      renders. Needs a funded testnet wallet → skipped when absent.
 //
-// Run via `make integration-test` (auto-aggregated by tool/gen_all_test.dart).
+// Run via `make integration-test` (auto-aggregated by tools/gen_all_test.dart).
 Future<void> main({bool isInitialized = false}) async {
   TestWidgetsFlutterBinding.ensureInitialized();
   if (!isInitialized) await Bull.init();

makefile

@@ -278,11 +278,11 @@ unit-test:
 # invocation, so running this one file builds + launches once for the whole
 # suite (instead of failing every file but the first, as `flutter test
 # integration_test/` does). all_test.dart is a generated, gitignored artifact —
-# tool/gen_all_test.dart regenerates it from disk below, so adding a test file
+# tools/gen_all_test.dart regenerates it from disk below, so adding a test file
 # needs no manual wiring.
 integration-test:
 	@echo "🧪 integration tests"
-	@fvm dart run tool/gen_all_test.dart
+	@fvm dart run tools/gen_all_test.dart
 	@fvm flutter test integration_test/all_test.dart --reporter=expanded
 
 # Build & render the bull_ui design-system catalogue (Widgetbook) locally in the

tool/README.md tools/README.mdtool/README.md renamed to tools/README.md

@@ -1,4 +1,4 @@
-# tool/
+# tools/
 
 Developer scripts for this repo. Run everything through `fvm` (see `AGENTS.md`).
 Each script is documented in its own section below.
@@ -11,7 +11,7 @@ other key stays byte-for-byte unchanged and JSON never breaks. It refuses to edi
 a file that doesn't match the expected 2-space-per-top-level-key layout.
 
 ```
-fvm dart run tool/arb.dart <command>
+fvm dart run tools/arb.dart <command>
 ```
 
 Read:
@@ -40,7 +40,7 @@ after a bare `--`.
 
 After any write command (`add`, `set`, `set-meta`, `rename`, `delete`), run
 `make translations` to regenerate the Dart localizations — each changes either
-the key set or a generated string. Run `fvm dart run tool/arb.dart help` for the
+the key set or a generated string. Run `fvm dart run tools/arb.dart help` for the
 full reference.
 
 > First run is slow (cold package build hooks); subsequent runs are sub-second.

tool/arb.dart tools/arb.darttool/arb.dart renamed to tools/arb.dart

@@ -13,7 +13,7 @@
 // validates this invariant before mutating and refuses to touch a file that
 // breaks it.
 //
-// Run `dart run tool/arb.dart help` for usage.
+// Run `dart run tools/arb.dart help` for usage.
 
 import 'dart:convert';
 import 'dart:io';
@@ -994,7 +994,7 @@ void _printUsage() {
   print(r'''
 arb.dart — manage the .arb localization files under localization/
 
-Usage: dart run tool/arb.dart <command> [args]
+Usage: dart run tools/arb.dart <command> [args]
 
 Read commands:
   get KEY [--locale L]
@@ -1041,13 +1041,13 @@ A value that looks like an option (e.g. the literal "--list") can be passed
 after a bare `--`: `set KEY LOCALE -- --list`.
 
 Examples:
-  dart run tool/arb.dart get exchangeTestnetBasicAuthTitle
-  dart run tool/arb.dart check exchangeTestnetBasicAuthTitle
-  dart run tool/arb.dart missing --locale fr --list
-  dart run tool/arb.dart dead --list
-  dart run tool/arb.dart add myNewKey \
+  dart run tools/arb.dart get exchangeTestnetBasicAuthTitle
+  dart run tools/arb.dart check exchangeTestnetBasicAuthTitle
+  dart run tools/arb.dart missing --locale fr --list
+  dart run tools/arb.dart dead --list
+  dart run tools/arb.dart add myNewKey \
     --translations '{"en":"Hello","fr":"Bonjour"}' \
     --description "A greeting"
-  dart run tool/arb.dart delete myNewKey
+  dart run tools/arb.dart delete myNewKey
 ''');
 }

tool/gen_all_test.dart tools/gen_all_test.darttool/gen_all_test.dart renamed to tools/gen_all_test.dart

@@ -8,7 +8,7 @@
 // The output is a generated build artifact: it is gitignored and regenerated on
 // every `make integration-test`. Do not commit or hand-edit it.
 //
-// Run via: fvm dart run tool/gen_all_test.dart
+// Run via: fvm dart run tools/gen_all_test.dart
 import 'dart:io';
 
 // Files matching *_test.dart that must NOT be aggregated: the generated file
@@ -38,7 +38,9 @@ void main() {
   };
 
   final b = StringBuffer()
-    ..writeln('// GENERATED by tool/gen_all_test.dart — do not edit or commit.')
+    ..writeln(
+      '// GENERATED by tools/gen_all_test.dart — do not edit or commit.',
+    )
     ..writeln('// Regenerated on every `make integration-test`.')
     ..writeln("import 'package:bb_mobile/main.dart';")
     ..writeln("import 'package:flutter_test/flutter_test.dart';");