Fix bugs in MarketData and CoinGecko handlers

- Change logging.error to logging.debug for response headers in MarketData.get()
- Fix MarketData.status() to check its own API instead of CoinGecko uptime monitor
- Fix f-string bug in cg_Crypto.cap_reply (market cap was not interpolated)
- Add exponential backoff with max 3 retries for CoinGecko 429 errors
- Fix formatting issues in cg_Crypto (quote consistency, spacing)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

common/MarketData.py

@@ -74,7 +74,7 @@ class MarketData:
 
         resp = r.get(url, params=params, timeout=timeout, headers=headers)
 
-        logging.error(resp.headers.items())
+        logging.debug(resp.headers.items())
 
         # Make sure API returned a proper status code
         try:
@@ -133,27 +133,21 @@ class MarketData:
         self.charts = {}
 
     def status(self) -> str:
-        # TODO: At the moment this API is poorly documented, this function likely needs to be revisited later.
-
+        """Check MarketData.app API status by making a test request."""
         try:
+            # Test the API with a simple request
             status = r.get(
-                "https://stats.uptimerobot.com/api/getMonitorList/6Kv3zIow0A",
+                "https://api.marketdata.app/v1/stocks/quotes/AAPL/",
                 timeout=5,
             )
             status.raise_for_status()
+            return f"MarketData.app API is responding OK with status {status.status_code} in {status.elapsed.total_seconds():.2f} seconds."
         except r.HTTPError:
-            return f"API returned an HTTP error code {status.status_code} in {status.elapsed.total_seconds()} seconds."
+            return f"MarketData.app API returned an HTTP error code {status.status_code} in {status.elapsed.total_seconds():.2f} seconds."
         except r.Timeout:
-            return "API timed out before it was able to give status. This is likely due to a surge in usage or a complete outage."
-
-        statusJSON = status.json()
-
-        if statusJSON["status"] == "ok":
-            return (
-                f"CoinGecko API responded that it was OK with a {status.status_code} in {status.elapsed.total_seconds()} seconds."
-            )
-        else:
-            return f"MarketData.app is currently reporting the following status: {statusJSON['status']}"
+            return "MarketData.app API timed out before it could respond. This is likely due to a surge in usage or a complete outage."
+        except Exception as e:
+            return f"MarketData.app API check failed: {str(e)}"
 
     def price_reply(self, symbol: Stock) -> str:
         """Returns price movement of Stock for the last market day, or after hours.