Fix syntax error in runtime.exs Redis configuration

- Wrap String.to_integer in try/rescue block properly
- Fix CompileError caused by rescue clause inside case statement
- Ensures runtime.exs can compile and load Redis configuration

🤖 Generated with [Claude Code](https://claude.ai/code)

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

config/runtime.exs

@@ -135,11 +135,13 @@ if config_env() == :prod do
   end
   
   # Extract database from path if present
-  redis_database = case redis_uri.path do
-    nil -> 0
-    "/" -> 0
-    path -> 
-      path |> String.trim_leading("/") |> String.to_integer()
+  redis_database = try do
+    case redis_uri.path do
+      nil -> 0
+      "/" -> 0
+      path -> 
+        path |> String.trim_leading("/") |> String.to_integer()
+    end
   rescue
     _ -> 0
   end