Add Deck dashboard with Athena telemetry history

deploy/import_dashboard_history.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+"""Copy old Athena dashboard telemetry once, without reading chats or logs.
+
+Run before the first Deck dashboard start. SQLite's backup API safely includes
+the source WAL while the old dashboard is still collecting samples.
+"""
+import argparse
+import os
+import sqlite3
+from pathlib import Path
+
+REQUIRED = {'meta','samples_raw','samples_hourly','slot_samples_raw',
+            'slot_samples_hourly','token_totals','token_hourly','model_events'}
+
+
+def import_history(source, target):
+    source=Path(source)
+    target=Path(target)
+    if not source.is_file() or target.exists():
+        raise ValueError('Quelldatenbank fehlt oder Deck-Ziel existiert bereits; nichts überschrieben.')
+    target.parent.mkdir(parents=True,exist_ok=True)
+    old=sqlite3.connect('file:'+str(source)+'?mode=ro',uri=True)
+    try:
+        tables={row[0] for row in old.execute("SELECT name FROM sqlite_master WHERE type='table'")}
+        if not REQUIRED<=tables:raise ValueError('Unbekanntes Dashboard-History-Schema.')
+        new=sqlite3.connect(target)
+        try:
+            old.backup(new)
+            if new.execute('PRAGMA integrity_check').fetchone()[0]!='ok':
+                raise ValueError('Kopierte Datenbank ist beschädigt.')
+            counts={table:new.execute('SELECT COUNT(*) FROM '+table).fetchone()[0]
+                    for table in ('samples_raw','slot_samples_raw','token_hourly','model_events')}
+        except Exception:
+            new.close()
+            target.unlink(missing_ok=True)
+            raise
+        finally:
+            if new: new.close()
+        target.chmod(0o600)
+        if os.geteuid()==0:
+            owner=target.parent.stat()
+            os.chown(target,owner.st_uid,owner.st_gid)
+        return counts
+    finally:
+        old.close()
+
+
+if __name__=='__main__':
+    parser=argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('source',type=Path)
+    parser.add_argument('target',type=Path)
+    args=parser.parse_args()
+    print(import_history(args.source,args.target))