fix(config): remove old developer configs

config/markets/left.yml

@@ -0,0 +1,47 @@
+# Markets left rail — tickers and macro rates
+- size: small
+  widgets:
+    - type: markets
+      title: Indices
+      markets:
+        - symbol: SPY
+          name: S&P 500
+        - symbol: QQQ
+          name: Nasdaq
+        - symbol: DX-Y.NYB
+          name: Dollar Index
+
+    - type: markets
+      title: Crypto
+      markets:
+        - symbol: BTC-USD
+          name: Bitcoin
+        - symbol: ETH-USD
+          name: Ethereum
+
+    - type: markets
+      title: Stocks
+      sort-by: absolute-change
+      markets:
+        - symbol: NVDA
+          name: NVIDIA
+        - symbol: AAPL
+          name: Apple
+        - symbol: MSFT
+          name: Microsoft
+        - symbol: GOOGL
+          name: Google
+        - symbol: AMD
+          name: AMD
+        - symbol: RDDT
+          name: Reddit
+        - symbol: AMZN
+          name: Amazon
+        - symbol: TSLA
+          name: Tesla
+        - symbol: INTC
+          name: Intel
+        - symbol: META
+          name: Meta
+
+    - $include: ../shared/rates.yml