refactor: remove KI-Orakel from history page and backend

Drop oracle UI, API endpoint, scheduled generation, and related docs.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/app.py

@@ -11,7 +11,7 @@ from fastapi import Depends, FastAPI, HTTPException, Request
 from fastapi.responses import FileResponse, JSONResponse
 from fastapi.staticfiles import StaticFiles
 
-from server.ai import generate_daily_motivation, generate_oracle, get_oracle, get_roast_of_the_day
+from server.ai import generate_daily_motivation, get_roast_of_the_day
 from server.auth import create_token, require_auth, verify_pin
 from server.config_loader import load_meds_config, slot_to_dict, today_str
 from server.db import ensure_schema, get_db, new_id, utc_now_iso
@@ -51,17 +51,6 @@ async def _ensure_today_motivation() -> None:
         await db.close()
 
 
-async def _ensure_today_oracle() -> None:
-    config = load_meds_config()
-    db = await get_db()
-    try:
-        await generate_oracle(db, config.timezone)
-    except Exception:
-        logger.exception("Startup oracle generation failed")
-    finally:
-        await db.close()
-
-
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     db = await get_db()
@@ -69,7 +58,6 @@ async def lifespan(app: FastAPI):
     await db.close()
     start_scheduler()
     asyncio.create_task(_ensure_today_motivation())
-    asyncio.create_task(_ensure_today_oracle())
     yield
 
 
@@ -219,17 +207,6 @@ async def get_roast(_: dict = Depends(require_auth)) -> JSONResponse:
     return JSONResponse(data, headers=NO_STORE)
 
 
-@app.get("/api/oracle")
-async def get_oracle_route(_: dict = Depends(require_auth)) -> JSONResponse:
-    config = load_meds_config()
-    db = await get_db()
-    try:
-        data = await get_oracle(db, config.timezone)
-    finally:
-        await db.close()
-    return JSONResponse(data, headers=NO_STORE)
-
-
 # Static files — must be after API routes
 PUBLIC = pathlib.Path(settings.public_dir)
 if PUBLIC.exists():