improvement(mothership): let a code call run for up to fifteen minutes

A render or build that needs more than five minutes was cut off at the
ceiling and failed, and the model started over in smaller pieces or
escaped the call with a background process the paused workbench then
stalled. Mothership code calls now run up to 900 seconds. The worker's
schema still decides what a model may request, so this is inert until
the worker raises its own maximum.

Author: waleedlatif1

apps/sim/lib/mothership/tools/handlers/function-execute-session.test.ts

@@ -146,7 +146,7 @@ describe('executeFunctionExecute session plumbing', () => {
     expect(mockExecuteTool.mock.calls[1][1].timeout).toBe(90_000)
 
     await executeFunctionExecute({ code: 'x', language: 'python', timeout: 45_000 }, BASE_CONTEXT)
-    expect(mockExecuteTool.mock.calls[2][1].timeout).toBe(300_000)
+    expect(mockExecuteTool.mock.calls[2][1].timeout).toBe(900_000)
   })
 })
 
@@ -187,8 +187,9 @@ describe.each([
     { timeout: 7, expected: 7_000 },
     { timeout: '90', expected: 90_000 },
     { timeout: 300, expected: 300_000 },
-    { timeout: 601, expected: 300_000 },
-    { timeout: 45_000, expected: 300_000 },
+    { timeout: 900, expected: 900_000 },
+    { timeout: 901, expected: 900_000 },
+    { timeout: 45_000, expected: 900_000 },
     { timeout: 0, expected: 60_000 },
     { timeout: 'invalid', expected: 60_000 },
   ])('maps $timeout seconds to $expected milliseconds once', async ({ timeout, expected }) => {

apps/sim/lib/mothership/tools/handlers/function-execute.ts

@@ -76,7 +76,11 @@ const logger = createLogger('CopilotFunctionExecute')
 const MAX_MOUNTED_FILES = 500
 /** The call budget includes cold allocation and mounting, before the user's code starts. */
 const DEFAULT_TIMEOUT_SECONDS = 60
-const MAX_TIMEOUT_SECONDS = 300
+/**
+ * The longest call the worker may request. Long renders and builds need it whole: cut off at
+ * five minutes, they fail and start over. The worker's schema decides what a model may ask for.
+ */
+const MAX_TIMEOUT_SECONDS = 900
 
 /** An input the run asked for that was not mounted, and why; paths are the model's own. */
 export interface ExcludedInput {