Add FreeScout time tracking CLI with Excel invoice generation

TOOLS.md

@@ -176,6 +176,26 @@ ainews reset                # Clear seen history
 
 ---
 
+## FreeScout Time Tracking
+
+Helper script: `~/bin/freescout`
+
+```bash
+freescout mailboxes                          # List mailboxes
+freescout users                              # List users
+freescout report --from DATE --to DATE       # Show time report (tab-separated)
+  [--mailbox ID] [--user ID]
+freescout excel --from DATE --to DATE        # Generate invoice Excel
+  [--mailbox ID] [--user ID] [--output file.xlsx]
+```
+
+- Credentials: `.credentials/services.env` (CLOONAR_DB_* + FREESCOUT_DB_NAME)
+- Queries timelogs table directly (API doesn't expose time tracking)
+- Excel groups by conversation, shows subject, customer, hours
+- `time_spent` is stored in seconds, displayed as decimal hours
+
+---
+
 ## Brain Dump CLI
 
 Helper script: `~/clawd/bin/tasks`