Add permission security snippets and region tags

[strzyzkat]

Add Android permission security and inter-component IPC snippets

Summary

Adds code snippets, manifest configurations, and resource declarations covering permission security, caller verification, and inter-component communication patterns for documentation and skill grounding.

Patterns covered

Topic	Primary file	Snippet tags
Custom signature permissions	AndroidManifest.xml	android_security_custom_permission_signature_manifest android_security_custom_permission_service_manifest
knownSigner permissions	security_certs.xml AndroidManifest.xml	android_security_known_signer_certs_xml android_security_custom_permission_known_signer_manifest android_security_known_signer_service_manifest
Caller authentication & anti-pattern	CallerVerifier.kt	android_security_caller_verifier android_security_caller_signature_verification android_security_caller_spoofing_vulnerable
Runtime permissions flow	RuntimePermissionsActivity.kt	android_security_runtime_permission_request
Protected broadcasts & sender identity	ProtectedBroadcastSnippets.kt AndroidManifest.xml	android_security_protected_broadcast_send android_security_broadcast_sender_identity android_security_broadcast_receiver_verify_identity android_security_protected_broadcast_receiver_manifest
Bound service permission checks	FineGrainedBoundService.kt	android_security_service_enforce_calling_permission
Split read/write provider & scoped URIs	AndroidManifest.xml UriPermissionSnippets.kt	android_security_content_provider_read_write_manifest android_security_provider_read_write_manifest android_security_uri_permission_management
Sequential location	LocationPermissionSnippets.kt	android_security_sequential_location_permission
Photo picker	MediaPickerSnippets.kt	android_security_photo_picker_request
Runtime error boundaries	PermissionErrorHandling.kt	android_security_permission_error_handling

Validation

• Executed ./gradlew :security:spotlessCheck (0 errors).
• Executed ./gradlew :security:check and ./gradlew :security:lintDebug (0 errors, 0 warnings).

[snippet-bot]

Here is the summary of changes.

You are about to add 21 region tags.

• security/src/main/AndroidManifest.xml:25, tag android_security_content_provider_read_write_manifest
• security/src/main/AndroidManifest.xml:38, tag android_security_custom_permission_signature_manifest
• security/src/main/AndroidManifest.xml:44, tag android_security_custom_permission_known_signer_manifest
• security/src/main/AndroidManifest.xml:92, tag android_security_custom_permission_service_manifest
• security/src/main/AndroidManifest.xml:103, tag android_security_known_signer_service_manifest
• security/src/main/AndroidManifest.xml:114, tag android_security_protected_broadcast_receiver_manifest
• security/src/main/AndroidManifest.xml:134, tag android_security_provider_read_write_manifest
• security/src/main/java/com/example/snippets/security/permissions/CallerVerifier.kt:24, tag android_security_caller_verifier
• security/src/main/java/com/example/snippets/security/permissions/CallerVerifier.kt:25, tag android_security_caller_signature_verification
• security/src/main/java/com/example/snippets/security/permissions/CallerVerifier.kt:87, tag android_security_caller_spoofing_vulnerable
• security/src/main/java/com/example/snippets/security/permissions/FineGrainedBoundService.kt:33, tag android_security_service_enforce_calling_permission
• security/src/main/java/com/example/snippets/security/permissions/LocationPermissionSnippets.kt:25, tag android_security_sequential_location_permission
• security/src/main/java/com/example/snippets/security/permissions/MediaPickerSnippets.kt:26, tag android_security_photo_picker_request
• security/src/main/java/com/example/snippets/security/permissions/PermissionErrorHandling.kt:34, tag android_security_permission_error_handling
• security/src/main/java/com/example/snippets/security/permissions/ProtectedReceiver.kt:25, tag android_security_protected_broadcast_send
• security/src/main/java/com/example/snippets/security/permissions/ProtectedReceiver.kt:35, tag android_security_broadcast_sender_identity
• security/src/main/java/com/example/snippets/security/permissions/ProtectedReceiver.kt:51, tag android_security_broadcast_receiver_verify_identity
• security/src/main/java/com/example/snippets/security/permissions/RuntimePermissionsActivity.kt:29, tag android_security_runtime_permission_request
• security/src/main/java/com/example/snippets/security/permissions/UriPermissionSnippets.kt:24, tag android_security_uri_permission_management
• security/src/main/res/values/security_certs.xml:17, tag android_security_known_signer_certs_xml
• security/src/main/res/xml/allowed_peers.xml:18, tag android_security_allowed_peers_xml

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[sabs231]

Feel free to use agent to reject/accept comments :)

[sabs231]

just one minor thing on this file: security/src/main/res/xml/allowed_peers.xml

Left comment there

and don't forget to update the branch