ci: add gh workflow

.github/workflows/lint_and_format.yml

@@ -0,0 +1,31 @@
+name: Lint & formatting
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+    branches: ["**"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
+        with:
+          flutter-version: "3.22.3"
+          channel: "stable"
+      - run: flutter --version
+
+      - name: Install dependencies
+        run: dart pub get
+
+      - name: generate files
+        run: dart run build_runner build --delete-conflicting-outputs
+
+      - name: Verify formatting
+        run: dart format --output=none --set-exit-if-changed .
+
+      - name: Analyze project source
+        run: flutter analyze --fatal-infos --no-pub

README.md

@@ -144,6 +144,23 @@ fvm flutter run
 3. Api helper module instructions: https://github.com/Solvro/topwr-mobile/tree/main/lib/api_base
 4. We use `flutter_gen` for generating asset paths: https://pub.dev/packages/flutter_gen 
 
+# Before you push a commit
+- run the linter
+```bash
+flutter analyze
+```
+- if you have any problems listed, try to autofix with
+```bash
+dart fix --apply
+```
+- run `analyze` again, if problems still persist, correct them manually. If you disagree with some of the rules, we can still discuss and adjust them. Hit me up @simon-the-shark or open an issue.
+- run formatter
+```bash
+dart format .
+```
+## Github workflow
+Don't worry if you've forgotten about the steps, automatic gh action will run the checks for you and notify if somthing's wrong.
+
 
 ## Working with git