fix: Android E2E aliceTile race + bundle deploy-android infra

The Android UI integration test failed at tap(aliceTile) with "0 widgets"
even though pumpUntil had just found the tile. On the slow software-rendered
emulator the route-pop animation finalises during pumpUntil's trailing 300 ms
settle, briefly leaving the tile out of the tree. Re-confirm with a second
pumpUntil before the tap.

Bundles the previously uncommitted infra changes that make task deploy-android
run end-to-end inside nix develop: Linux desktop runtime libs + GL software
rendering env in flake.nix, path_provider_android pin to <2.3 to avoid the
libdartjni SIGSEGV, deferred DB-path resolution after WidgetsFlutterBinding,
+iglx for xvfb-run, platform-tools on PATH, and a single pre-commit script
replacing the dart-format / task-check-fast pair.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.pre-commit-config.yaml

@@ -1,15 +1,9 @@
 repos:
   - repo: local
     hooks:
-      - id: dart-format
-        name: dart format
+      - id: dart-check
+        name: dart format (autofix) + check-fast (parallel)
         language: system
-        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command fvm dart format .'
-        pass_filenames: false
-        always_run: true
-      - id: task-check
-        name: task check-fast (analyze + unit + widget)
-        language: system
-        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command task check-fast'
+        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command scripts/pre_commit_check.sh'
         pass_filenames: false
         always_run: true