refactor: AIDA -> modulare Zeiterfassung

- Alle AIDA-Referenzen durch generische Begriffe ersetzt
  (aida -> attendance im Code, "Zeiterfassung" im UI)
- DB-Spalten: last_aida_status -> last_attendance_status
- Settings: aida_csv_path -> attendance_csv_path
- REST API fuer Zeiterfassung auf Port 8081:
  POST /api/attendance/{personal_nr} mit {"status": "anwesend"}
  GET  /api/attendance - alle Status abfragen
- Automatische DB-Migration fuer bestehende Installationen
- CSV bleibt als Option, API als Echtzeit-Alternative

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app.py

@@ -192,14 +192,14 @@ async def dashboard(request: Request):
         for seg_idx in range(dev["segment_count"]):
             row = conn.execute("""
                 SELECT u.display_name, u.azure_id,
-                       s.last_aida_status, s.last_teams_status,
+                       s.last_attendance_status, s.last_teams_status,
                        COALESCE(s.phone_active, 0) as phone_active,
-                       cr_aida.r as ar, cr_aida.g as ag, cr_aida.b as ab,
+                       cr_att.r as ar, cr_att.g as ag, cr_att.b as ab,
                        cr_teams.r as tr, cr_teams.g as tg, cr_teams.b as tb
                 FROM assignments a
                 JOIN users u ON u.azure_id = a.user_azure_id
                 LEFT JOIN state s ON s.user_azure_id = u.azure_id
-                LEFT JOIN color_rules cr_aida ON cr_aida.status = s.last_aida_status
+                LEFT JOIN color_rules cr_att ON cr_att.status = s.last_attendance_status
                 LEFT JOIN color_rules cr_teams ON cr_teams.status = s.last_teams_status
                 WHERE a.wled_device_id = ? AND a.segment = ?
             """, (dev["id"], seg_idx)).fetchone()
@@ -207,10 +207,9 @@ async def dashboard(request: Request):
             if row:
                 phone = row["phone_active"]
                 if phone:
-                    # Phone active: show phone color
                     pc = conn.execute("SELECT r,g,b FROM color_rules WHERE status='phone_active'").fetchone()
                     r, g, b = (pc["r"], pc["g"], pc["b"]) if pc else (255, 0, 0)
-                elif row["last_aida_status"] == "anwesend" and row["tr"] is not None:
+                elif row["last_attendance_status"] == "anwesend" and row["tr"] is not None:
                     r, g, b = row["tr"], row["tg"], row["tb"]
                 elif row["ar"] is not None:
                     r, g, b = row["ar"], row["ag"], row["ab"]
@@ -219,7 +218,7 @@ async def dashboard(request: Request):
                 segments.append({
                     "index": seg_idx,
                     "user": row["display_name"],
-                    "aida": row["last_aida_status"] or "-",
+                    "attendance": row["last_attendance_status"] or "-",
                     "teams": row["last_teams_status"] or "-",
                     "phone": phone,
                     "r": r, "g": g, "b": b,
@@ -227,7 +226,7 @@ async def dashboard(request: Request):
             else:
                 segments.append({
                     "index": seg_idx, "user": None,
-                    "aida": "-", "teams": "-",
+                    "attendance": "-", "teams": "-",
                     "r": 128, "g": 128, "b": 128,
                 })
 
@@ -558,8 +557,8 @@ async def update_settings(request: Request):
     keys = [
         "azure_client_id", "azure_client_secret", "azure_tenant_id",
         "azure_auth_tenant", "azure_scopes", "poll_interval",
-        "aida_csv_path", "aida_status_anwesend", "aida_status_abwesend",
-        "aida_status_homeoffice",
+        "attendance_csv_path", "attendance_status_anwesend", "attendance_status_abwesend",
+        "attendance_status_homeoffice",
     ]
     for key in keys:
         value = form.get(key, "")
@@ -607,7 +606,7 @@ async def log_page(request: Request):
 async def api_status():
     conn = database.get_db()
     states = conn.execute("""
-        SELECT u.display_name, u.azure_id, s.last_aida_status, s.last_teams_status,
+        SELECT u.display_name, u.azure_id, s.last_attendance_status, s.last_teams_status,
                s.updated_at, d.hostname, a.segment
         FROM state s
         JOIN users u ON u.azure_id = s.user_azure_id