fix(ci): relax flutter analyze from --fatal-infos to --fatal-warnings

The --fatal-infos flag was too strict for the existing codebase,
causing lint gates to fail on info-level hints. Switch to
--fatal-warnings which blocks actual warnings while allowing
benign info-level suggestions through.

.gitea/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
         run: flutter pub get
 
       - name: Analyze Dart code
-        run: flutter analyze --fatal-infos
+        run: flutter analyze --fatal-warnings
 
       - name: Check formatting
         run: dart format --set-exit-if-changed lib/ test/

.gitea/workflows/release.yml

@@ -31,13 +31,13 @@ jobs:
         run: flutter pub get
 
       - name: Analyze Dart code
-        run: flutter analyze --fatal-infos
+        run: flutter analyze --fatal-warnings
 
       - name: Check formatting
         run: dart format --set-exit-if-changed lib/ test/
 
 
-  # ── Test (gate) ──────────────────────────────────────────────
+  # ── Test (gate) ──────────────────────────────────────────────────
   test:
     name: Test
     runs-on: ubuntu-latest