fix: [AI-196] install altimate-engine[warehouses] extra by default

The managed engine install was missing the `[warehouses]` optional
dependency group, which includes `snowflake-connector-python`,
`psycopg2-binary`, `duckdb`, and other database connectors. This
caused FinOps tools and warehouse operations to fail with
"snowflake-connector-python not installed" errors.

Closes #196

Author: anandgupta42

packages/opencode/src/altimate/bridge/engine.ts

@@ -189,7 +189,7 @@ async function ensureEngineImpl(): Promise<void> {
   const pythonPath = enginePythonPath()
   Log.Default.info("installing altimate-engine", { version: ALTIMATE_ENGINE_VERSION })
   try {
-    execFileSync(uv, ["pip", "install", "--python", pythonPath, `altimate-engine==${ALTIMATE_ENGINE_VERSION}`], { stdio: "pipe" })
+    execFileSync(uv, ["pip", "install", "--python", pythonPath, `altimate-engine[warehouses]==${ALTIMATE_ENGINE_VERSION}`], { stdio: "pipe" })
   } catch (e: any) {
     Telemetry.track({
       type: "engine_error",