feat(dashboard): add logs page, pagination, quick mapping modal, price pre-validation

- Add /logs page with per-order sync run details, filters (Toate/Importate/Fara Mapare/Erori)
- Add price pre-validation (validate_prices + ensure_prices) to prevent ORA-20000 on direct articles
- Add find_new_orders() to detect orders not yet in Oracle COMENZI
- Extend missing_skus table with order context (order_count, order_numbers, customers)
- Add server-side pagination on /api/validate/missing-skus and /missing-skus page
- Replace confusing "Skip"/"Err" with "Fara Mapare"/"Erori" terminology
- Add inline mapping modal on dashboard (replaces navigation to /mappings)
- Add 2-row stat cards: orders (Comenzi Noi/Ready/Importate/Fara Mapare/Erori) + articles
- Add ID_POL/ID_GESTIUNE/ID_SECTIE to config.py and .env
- Update .gitignore (venv, *.db, api/api/, logs/)
- 33/33 unit tests pass, E2E verified with Playwright

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api/app/routers/sync.py

@@ -60,6 +60,11 @@ async def sync_history(page: int = 1, per_page: int = 20):
     return await sqlite_service.get_sync_runs(page, per_page)
 
 
+@router.get("/logs", response_class=HTMLResponse)
+async def logs_page(request: Request):
+    return templates.TemplateResponse("logs.html", {"request": request})
+
+
 @router.get("/api/sync/run/{run_id}")
 async def sync_run_detail(run_id: str):
     """Get details for a specific sync run."""
@@ -69,6 +74,30 @@ async def sync_run_detail(run_id: str):
     return detail
 
 
+@router.get("/api/sync/run/{run_id}/log")
+async def sync_run_log(run_id: str):
+    """Get detailed log per order for a sync run."""
+    detail = await sqlite_service.get_sync_run_detail(run_id)
+    if not detail:
+        return {"error": "Run not found", "status_code": 404}
+    orders = detail.get("orders", [])
+    return {
+        "run_id": run_id,
+        "run": detail.get("run", {}),
+        "orders": [
+            {
+                "order_number": o.get("order_number"),
+                "customer_name": o.get("customer_name"),
+                "items_count": o.get("items_count"),
+                "status": o.get("status"),
+                "error_message": o.get("error_message"),
+                "missing_skus": o.get("missing_skus"),
+            }
+            for o in orders
+        ]
+    }
+
+
 @router.put("/api/sync/schedule")
 async def update_schedule(config: ScheduleConfig):
     """Update scheduler configuration."""