Rename serverlessFunction to logicFunction (#17494)

## Summary

Rename "Serverless Function" to "Logic Function" across the codebase for
clearer naming.

### Environment Variable Changes

| Old | New |
|-----|-----|
| `SERVERLESS_TYPE` | `LOGIC_FUNCTION_TYPE` |
| `SERVERLESS_LAMBDA_REGION` | `LOGIC_FUNCTION_LAMBDA_REGION` |
| `SERVERLESS_LAMBDA_ROLE` | `LOGIC_FUNCTION_LAMBDA_ROLE` |
| `SERVERLESS_LAMBDA_SUBHOSTING_URL` |
`LOGIC_FUNCTION_LAMBDA_SUBHOSTING_URL` |
| `SERVERLESS_LAMBDA_ACCESS_KEY_ID` |
`LOGIC_FUNCTION_LAMBDA_ACCESS_KEY_ID` |
| `SERVERLESS_LAMBDA_SECRET_ACCESS_KEY` |
`LOGIC_FUNCTION_LAMBDA_SECRET_ACCESS_KEY` |

### Breaking Changes

- Environment variables must be updated in production deployments
- Database migration renames `serverlessFunction` → `logicFunction`
tables

packages/twenty-server/src/engine/metadata-modules/logic-function/constants/default-tool-input-schema.constant.ts

@@ -0,0 +1,9 @@
+// Default tool input schema matching the seed-project template
+// Template params: { a: string; b: number; }
+export const DEFAULT_TOOL_INPUT_SCHEMA = {
+  type: 'object',
+  properties: {
+    a: { type: 'string' },
+    b: { type: 'number' },
+  },
+};

packages/twenty-server/src/engine/metadata-modules/logic-function/constants/flat-logic-function-editable-properties.constant.ts

@@ -0,0 +1,13 @@
+import { type FlatLogicFunction } from 'src/engine/metadata-modules/logic-function/types/flat-logic-function.type';
+
+export const FLAT_LOGIC_FUNCTION_EDITABLE_PROPERTIES = [
+  'name',
+  'description',
+  'timeoutSeconds',
+  'checksum',
+  'code',
+  'sourceHandlerPath',
+  'handlerName',
+  'toolInputSchema',
+  'isTool',
+] as const satisfies (keyof FlatLogicFunction)[];

packages/twenty-server/src/engine/metadata-modules/logic-function/constants/logic-function-published.ts

@@ -0,0 +1 @@
+export const LOGIC_FUNCTION_PUBLISHED = 'logic_function_published';