Initial commit: ContactSync Android app

- SyncAdapter with account type com.bitrix24.contacts.sync
- Two-phase sync: download to Room DB, then import to phone contacts
- FCM push for instant contact addition
- WorkManager: periodic sync (30min) + heartbeat (1h)
- QR code activation (JSON format)
- Event log UI with LiveData
- Auto-update mechanism via version.php
- Duplicate contacts cleanup
- CALLER_IS_SYNCADAPTER optimization for bulk inserts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

bump-version.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Bump version: increments versionCode and sets versionName
+# Usage: ./bump-version.sh 1.1.0
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+GRADLE_FILE="$SCRIPT_DIR/app/build.gradle.kts"
+
+# Current version
+CURRENT_CODE=$(grep 'versionCode' "$GRADLE_FILE" | head -1 | grep -o '[0-9]*')
+CURRENT_NAME=$(grep 'versionName' "$GRADLE_FILE" | head -1 | grep -o '"[^"]*"' | tr -d '"')
+
+NEW_CODE=$((CURRENT_CODE + 1))
+NEW_NAME="${1:-$CURRENT_NAME}"
+
+echo "Bumping version: $CURRENT_NAME ($CURRENT_CODE) → $NEW_NAME ($NEW_CODE)"
+
+# Replace in build.gradle.kts
+sed -i "s/versionCode = $CURRENT_CODE/versionCode = $NEW_CODE/" "$GRADLE_FILE"
+sed -i "s/versionName = \"$CURRENT_NAME\"/versionName = \"$NEW_NAME\"/" "$GRADLE_FILE"
+
+echo "Done. New version: $NEW_NAME ($NEW_CODE)"
+echo "Now run: ./deploy.sh"