Fix score refresh, add granular fetch and live job status

Scores never updated ("101d ago"): get_score only recomputes stale/
missing dimensions, but nothing marked them stale on new data, and there
was no scheduled scoring job.
- Fetch endpoint force-recomputes dimensions + composite.
- Scheduled scan (scan_all_tickers) refreshes scores per ticker, so
  scores stay current globally, not just on manual fetch.

Granular fetch: /ingestion/fetch accepts a sources filter; the freshness
bar gets a per-row refresh button (OHLCV/Sentiment/Fundamentals fetch
that provider only — marked paid; S/R/Scores recompute for free). Header
button is now "Fetch All".

Job visibility: GET /jobs/running (any user) + sidebar live indicator
showing running scheduled jobs with progress, polled every 10s.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/services/rr_scanner_service.py

@@ -244,6 +244,18 @@ async def scan_all_tickers(
     all_setups: list[TradeSetup] = []
     for ticker in tickers:
         try:
+            # Refresh scores first so the scheduled scan works off current data.
+            # Nothing else marks scores stale, so without this they'd never
+            # update for tickers the user doesn't manually fetch.
+            try:
+                from app.services import scoring_service
+
+                await scoring_service.compute_all_dimensions(db, ticker.symbol)
+                await scoring_service.compute_composite_score(db, ticker.symbol)
+                await db.commit()
+            except Exception:
+                logger.exception("Error refreshing scores for %s", ticker.symbol)
+
             setups = await scan_ticker(
                 db, ticker.symbol, rr_threshold, atr_multiplier
             )