feat(android): Filter Paparazzi previews to current module only

The Paparazzi preview scanner now filters out previews from dependency
modules, ensuring each module only generates snapshots for its own
previews. This prevents duplicate/conflicting snapshots and improves
build performance.

Implementation uses Gradle's variant source directories to accurately
determine which previews belong to the current module, supporting
all Android project structures including product flavors and custom
source sets.

- Query actual source directories from Android variant configuration
- Filter previews by checking source file existence in module directories
- Handle Kotlin file-level functions (Kt suffix removal)
- Remove bundled Paparazzi dependency from plugin (users apply manually)
- Add proper Gradle task input annotations for correct caching

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: runningcode

android/app/build.gradle.kts

@@ -8,6 +8,7 @@ plugins {
   alias(libs.plugins.sentry)
   alias(libs.plugins.roborazzi)
   alias(libs.plugins.androidx.room)
+  alias(libs.plugins.paparazzi)
   id("com.emergetools.paparazzi.preview-scanner")
 }
 

android/app/src/test/snapshots/images/Paparazzi_Preview_Test_com.emergetools.hackernews.ui.components.buttonkt.primarybuttondisabledpreview.dark_night.png

@@ -19,7 +19,7 @@ navigation = "2.9.6"
 browser = "1.9.0"
 emergePlugin = "4.4.0"
 emergeSnapshots = "1.5.0"
-sentry = "6.0.0-beta.3"
+sentry = "6.0.0-rc.1"
 shapes = "1.1.0"
 datastore = "1.2.0"
 room = "2.8.4"