fix: Update PreCompact hook to use session-start.sh for session_id passthrough

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.json

@@ -20,7 +20,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "gt prime"
+            "command": "bash ~/.claude/hooks/session-start.sh"
           }
         ]
       }