feat(android): Add instrumentation logs for prefetch investigation

Add comprehensive instrumentation to diagnose why native fetcher
is not being called during prefetch operations.

Instrumentation Added:
- TimeSafariApplication: Log app initialization, fetcher registration,
  and verification with process ID and timestamps
- TimeSafariNativeFetcher: Log configuration, fetch start, source
  resolution (native vs fallback), and write completion
- Diagnostic script: Filter logcat for prefetch-related events
- Investigation summary: Document root cause hypotheses and
  diagnostic checklist

Log Tags:
- APP|ON_CREATE: App initialization timing and process info
- FETCHER|REGISTER_START/REGISTERED: Fetcher registration lifecycle
- FETCHER|CONFIGURE_START/CONFIGURE_COMPLETE: Configuration tracking
- PREFETCH|START/SOURCE/WRITE_OK: Prefetch operation tracking
- DISPLAY|START/LOOKUP: Display worker tracking (future)
- STORAGE|POST_PREFETCH/PRE_DISPLAY: Storage verification (future)

This instrumentation will help diagnose:
1. Registration timing issues (worker before onCreate)
2. Fetcher resolution failures (null fetcher)
3. Process mismatches (multi-process issues)
4. ID schema inconsistencies (prefetch vs display)
5. Storage persistence issues (content not saved)

Author: Matthew Raymer

scripts/diagnose-prefetch.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# Diagnostic script for daily notification prefetch issues
+# Filters logcat output for prefetch-related instrumentation logs
+#
+# Usage:
+#   ./scripts/diagnose-prefetch.sh [package_name]
+#
+# Example:
+#   ./scripts/diagnose-prefetch.sh app.timesafari.app
+#
+
+set -e
+
+PACKAGE_NAME="${1:-app.timesafari.app}"
+
+echo "🔍 Daily Notification Prefetch Diagnostic Tool"
+echo "=============================================="
+echo ""
+echo "Package: $PACKAGE_NAME"
+echo "Filtering for instrumentation tags:"
+echo "  - APP|ON_CREATE"
+echo "  - FETCHER|*"
+echo "  - PREFETCH|*"
+echo "  - DISPLAY|*"
+echo "  - STORAGE|*"
+echo ""
+echo "Press Ctrl+C to stop"
+echo ""
+
+# Filter logcat for instrumentation tags
+adb logcat -c  # Clear logcat buffer first
+
+adb logcat | grep -E "APP\|ON_CREATE|FETCHER\||PREFETCH\||DISPLAY\||STORAGE\||DailyNotification|TimeSafariApplication|TimeSafariNativeFetcher" | \
+  grep -i "$PACKAGE_NAME\|TimeSafari\|DailyNotification"
+