Add build-project skill - Build configurations utility

- Level 1 utility skill
- Multiple build types (full/library/sample/clean)
- Quality checks integration
- Documentation generation

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Canato

.claude/skills/build-project.md

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+---
+name: build-project
+description: Build the Android Image Cropper project with various configurations
+argument-hint: "[build-type: full|library|sample|clean]"
+level: 1
+triggers:
+  - "build"
+  - "build project"
+  - "compile"
+---
+
+# Build Project Skill
+
+Build the Android Image Cropper project with different configurations and targets.
+
+## Quick Commands
+
+### Full Build with All Checks
+```bash
+./gradlew clean build --stacktrace
+```
+
+### Build with All Quality Checks
+```bash
+./gradlew licensee ktlint testDebug build --stacktrace
+```
+
+### Build Library Only
+```bash
+./gradlew :cropper:build
+```
+
+### Build Sample App
+```bash
+./gradlew :sample:assembleDebug
+```
+
+### Install Sample App on Device
+```bash
+./gradlew :sample:installDebug
+```
+
+## Build Configurations
+
+### Clean Build
+**When**: Before releases, after major changes, when build is acting weird
+
+```bash
+./gradlew clean
+./gradlew build --stacktrace
+```
+
+### Debug Build
+**When**: During development
+
+```bash
+./gradlew assembleDebug
+```
+
+### Release Build
+**When**: Testing release configuration
+
+```bash
+./gradlew assembleRelease
+```
+
+## Quality Checks
+
+### All Quality Checks
+```bash
+./gradlew licensee ktlint testDebug build --stacktrace
+```
+
+### Individual Checks
+
+**License Check**:
+```bash
+./gradlew licensee
+```
+
+**Code Style**:
+```bash
+./gradlew ktlint
+```
+
+**Tests**:
+```bash
+./gradlew testDebug
+```
+
+**Lint**:
+```bash
+./gradlew lint
+```
+
+## Documentation Generation
+
+### Generate API Docs with Dokka
+```bash
+./gradlew dokkaHtml
+```
+
+**Output**: `cropper/build/dokka/html/index.html`
+
+### Generate All Documentation
+```bash
+./gradlew dokka
+```
+
+## Build Artifacts
+
+### Library AAR
+**Location**: `cropper/build/outputs/aar/`
+
+```bash
+./gradlew :cropper:assembleRelease
+ls -lh cropper/build/outputs/aar/
+```
+
+### Sample APK
+**Location**: `sample/build/outputs/apk/debug/`
+
+```bash
+./gradlew :sample:assembleDebug
+ls -lh sample/build/outputs/apk/debug/
+```
+
+## Publishing (Local)
+
+### Publish to Maven Local
+**When**: Testing library changes in another project locally
+
+```bash
+./gradlew publishToMavenLocal
+```
+
+**Then in consuming project**:
+```groovy
+repositories {
+  mavenLocal()
+}
+
+dependencies {
+  implementation("com.vanniktech:android-image-cropper:4.8.0-SNAPSHOT")
+}
+```
+
+## Gradle Tasks Reference
+
+### View All Tasks
+```bash
+./gradlew tasks --all
+```
+
+### View Specific Module Tasks
+```bash
+./gradlew :cropper:tasks
+./gradlew :sample:tasks
+```
+
+### Dependency Tasks
+```bash
+# View dependencies
+./gradlew :cropper:dependencies
+
+# Check for dependency updates
+./gradlew dependencyUpdates
+```
+
+## Build Performance
+
+### Build with Performance Metrics
+```bash
+./gradlew build --profile
+```
+
+**Report**: `build/reports/profile/`
+
+### Build Cache Info
+```bash
+./gradlew build --build-cache
+```
+
+### Parallel Build
+```bash
+./gradlew build --parallel
+```
+
+## Troubleshooting Builds
+
+### Issue: Build fails with "Out of Memory"
+**Solution**:
+```bash
+# Increase heap size (already set in gradle.properties)
+# If still failing, try:
+export GRADLE_OPTS="-Xmx4096m"
+./gradlew build
+```
+
+### Issue: Build fails with "Permission denied"
+**Solution**:
+```bash
+chmod +x gradlew
+./gradlew build
+```
+
+### Issue: Gradle daemon issues
+**Solution**:
+```bash
+./gradlew --stop
+./gradlew build
+```
+
+### Issue: Dependency resolution fails
+**Solution**:
+```bash
+./gradlew build --refresh-dependencies
+```
+
+### Issue: Build cache corruption
+**Solution**:
+```bash
+rm -rf ~/.gradle/caches/
+./gradlew build
+```
+
+### Issue: Android SDK not found
+**Solution**:
+1. Install Android SDK
+2. Set `ANDROID_HOME` environment variable
+3. Create `local.properties`:
+```properties
+sdk.dir=/path/to/android/sdk
+```
+
+## Build Verification
+
+### Pre-Commit Checks
+```bash
+./gradlew ktlintFormat testDebug
+```
+
+### Pre-PR Checks
+```bash
+./gradlew clean licensee ktlint testDebug build --stacktrace
+```
+
+### Pre-Release Checks
+```bash
+./gradlew clean
+./gradlew licensee ktlint testDebug verifyPaparazziDebug build --stacktrace
+./gradlew :sample:installDebug
+# Manual testing of sample app
+```
+
+## Continuous Integration
+
+### CI Build Command
+This is what runs in GitHub Actions:
+```bash
+./gradlew licensee ktlint testDebug build --stacktrace
+```
+
+### Local CI Simulation
+```bash
+# Clean environment
+./gradlew clean
+
+# Run CI checks
+./gradlew licensee ktlint testDebug build --stacktrace
+
+# Check exit code
+echo $?  # Should be 0
+```
+
+## Build Output Locations
+
+```
+Android-Image-Cropper/
+├── cropper/build/
+│   ├── outputs/aar/              # Library artifacts
+│   ├── reports/tests/            # Test reports
+│   ├── reports/lint/             # Lint reports
+│   └── dokka/                    # API documentation
+├── sample/build/
+│   └── outputs/apk/              # Sample APKs
+└── build/
+    ├── reports/                  # Root project reports
+    └── dokka/                    # Combined documentation
+```
+
+## Quick Reference
+
+| Task | Command |
+|------|---------|
+| **Full build** | `./gradlew build` |
+| **Clean build** | `./gradlew clean build` |
+| **With checks** | `./gradlew licensee ktlint testDebug build --stacktrace` |
+| **Format code** | `./gradlew ktlintFormat` |
+| **Run tests** | `./gradlew testDebug` |
+| **Install sample** | `./gradlew :sample:installDebug` |
+| **Generate docs** | `./gradlew dokkaHtml` |
+| **Publish local** | `./gradlew publishToMavenLocal` |
+
+## Best Practices
+
+1. **Always clean before release builds**: `./gradlew clean`
+2. **Use --stacktrace for debugging**: Shows full error details
+3. **Run ktlintFormat before committing**: Auto-fix style issues
+4. **Test both modules**: Library and sample app
+5. **Check build reports**: Review test and lint reports
+6. **Use build cache**: Speeds up incremental builds
+7. **Keep Gradle updated**: Follow project's Gradle version
+
+---
+
+*A clean build is a happy build.*