Docs pass: update headers and READMEs for all new scripts

Script headers (6 files):
- Add OPERATIONAL SAFEGUARDS section to all discovery + emby sync scripts
- Add STATE FILES section to all 3 discovery scripts
- Add CONFIGURATION section to emby_to_*_sync.sh
- Rename USAGE → RUNTIME MODES in emby_to_*_sync.sh (doc standard)
- Fix SONARR_DISCOVERY_MONITOR_MODE default doc: "future" → "all"

Media/README-Media.md:
- Remove "WIP prototype" label; describe all 3 discovery scripts
- Add discovery scripts to scripts table and HOW THE SCRIPTS RELATE diagram
- Add weekly discovery schedule block to EXECUTION ORDER section
- Update intro to mention behavior-driven discovery

Media/Manual-Media.md:
- Add configuration reference sections for all 3 discovery scripts
- Add flag reference sections for all 3 discovery scripts

Tools/README-Tools.md:
- Add "Library Sync Bootstrap" category and emby_to_*_sync.sh to scripts table
- Add emby sync scripts to HOW THE SCRIPTS RELATE diagram

Tools/Manual-Tools.md:
- Update emby sync notes: search commands now fire immediately after add

README.md:
- Update Media folder description to include discovery
- Update weekly schedule to show discovery scripts
- Update README table entry for Media

Tools/README-Tools.md

@@ -78,6 +78,9 @@ something new, write the tool. Store it here. Find it at 2am next time.
 **Lifecycle Tools** — Backup, setup, and migration support  
 `container_data_export.sh`, `recreate_shares.sh`, `claude_startup.sh`
 
+**Library Sync Bootstrap** — Close the gap between Emby and arr libraries  
+`emby_to_lidarr_sync.sh`, `emby_to_sonarr_sync.sh`, `emby_to_radarr_sync.sh`
+
 ---
 
 ## ━━━ RELATIONSHIP TO OTHER FOLDERS ━━━
@@ -122,6 +125,9 @@ The relationship is one-way: Tools act on state that other scripts have written.
 | `recreate_shares.sh` | Share directories missing after fresh install or disk rebuild | After fresh unRAID install or disk replacement on HOST2 |
 | `continuous_scripts_status.sh` | Need a live view of watchdog and fallback state | Any time — manual dashboard, no schedule |
 | `claude_startup.sh` | Claude Code session setup after reboot — symlinks persistent storage | After each unRAID reboot, or called by array_started.sh |
+| `emby_to_lidarr_sync.sh` | Add all Emby album artists not yet tracked in Lidarr | After Lidarr setup, database wipe, or when you suspect gaps |
+| `emby_to_sonarr_sync.sh` | Add all Emby TV series not yet tracked in Sonarr | After Sonarr setup, database wipe, or when you suspect gaps |
+| `emby_to_radarr_sync.sh` | Add all Emby movies not yet tracked in Radarr | After Radarr setup, database wipe, or when you suspect gaps |
 
 ---
 
@@ -145,6 +151,10 @@ Situation arises
 │  recreate_shares             ◄── fresh HOST2 setup or disk rebuild    │
 │  continuous_scripts_status   ◄── manual status check at any time     │
 │  claude_startup              ◄── after each unRAID reboot             │
+│                                                                       │
+│  emby_to_lidarr_sync         ◄── Lidarr setup / database wipe / gap  │
+│  emby_to_sonarr_sync         ◄── Sonarr setup / database wipe / gap  │
+│  emby_to_radarr_sync         ◄── Radarr setup / database wipe / gap  │
 └──────────────────────────────────────────────────────────────────────┘
       │
       ▼