feat(logstream): Add real-time logcat streaming with deep link filtering

[manjees]

Summary

Adds a new Log Streamer screen that provides real-time logcat streaming with smart filtering focused on deep link and intent resolution events.

Closes #14

Features

Smart Log Filtering

• Pre-configured filters for deep link related log tags:
  • ActivityTaskManager — Activity launch and task management
  • IntentResolver — Intent resolution and matching
  • PackageManager — App link verification events
  • BrowserActivity / ResolverActivity — Disambiguation dialogs
• Custom tag and keyword filter support via chip-based UI
• Log level filtering (Verbose through Error)

Deep Link Event Detection

• Automatic detection and color-coding of deep link lifecycle events:
  • CLICKED — Link clicked / Intent fired
  • RESOLVED — Intent resolution (which app/activity matched)
  • STARTED — Activity started
  • RESULT — Activity displayed result
  • ERROR — Error during resolution/launch
• Visual event indicators with type-specific colors
• Toggle to show only deep link events

Log Management

• Start/Stop/Pause streaming controls with status indicator
• Clear log buffer
• Export filtered logs to text
• Search within captured logs
• Ring buffer (5000 entries max) for memory-safe long-running streams

Architecture

Follows the project's layered architecture:

Layer	Files
Domain Model	LogStream.kt (LogEntry, LogFilter, LogLevel, DeepLinkEvent)
Domain Repository	LogStreamRepository.kt
Domain UseCase	ObserveLogStreamUseCase.kt
Data Parser	LogcatParser.kt
Data Repository	LogStreamRepositoryImpl.kt
DI	AppContainer.kt (updated)
UI ViewModel	LogStreamViewModel.kt
UI Screen	LogStreamScreen.kt
Navigation	Screen.kt, NavGraph.kt, App.kt (updated)

Test Plan

• LogcatParser: 23 unit tests covering happy path, all log levels, deep link event detection, edge cases (empty input, ADB errors, permission denied, truncated output, special characters)
• ObserveLogStreamUseCase: 4 unit tests covering success/failure flows, filter passthrough, empty results
• Compile verification: ./gradlew :composeApp:compileKotlinJvm passes
• Regression tests: ./gradlew :composeApp:jvmTest all pass (0 failures)