fix: accept bunnative language in AI chat flow step validation (#10030)

* fix: accept bunnative language in AI chat flow step validation

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: regenerate copilot flow schema from openflow spec

Run gen_openflow_schema.sh + minifiedOpenflowJson.sh instead of hand-patching. Also syncs three fields the checked-in generated files had drifted from since the last regen (reasoning_effort, reasoning_token_delta streaming event, aiagent tag).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: regenerate system prompts for bunnative openflow schema

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/copilot/chat/flow/rawscriptLang.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest'
+import { flowModulesSchema } from './openFlowZod.gen'
+
+// Guards against the generated copilot flow Zod schema (openFlowZod.gen.ts)
+// drifting from the RawScript language enum in openflow.openapi.yaml. A missing
+// language here silently rejects AI-generated flow edits that use it in the
+// copilot flow-editing path (validateFlowModules -> flowModulesSchema).
+function rawScriptModuleWithLanguage(language: string) {
+	return {
+		id: 'a',
+		value: {
+			type: 'rawscript',
+			language,
+			content: 'export async function main() {}',
+			input_transforms: {}
+		}
+	}
+}
+
+describe('copilot flow module validation - rawscript language', () => {
+	it('accepts bunnative (and the bun baseline)', () => {
+		expect(flowModulesSchema.safeParse([rawScriptModuleWithLanguage('bun')]).success).toBe(true)
+		expect(flowModulesSchema.safeParse([rawScriptModuleWithLanguage('bunnative')]).success).toBe(
+			true
+		)
+	})
+
+	it('still rejects an unknown language (enum is actually enforced)', () => {
+		expect(
+			flowModulesSchema.safeParse([rawScriptModuleWithLanguage('not_a_real_lang')]).success
+		).toBe(false)
+	})
+})

openflow.openapi.yaml

@@ -655,6 +655,7 @@ components:
           enum:
             - deno
             - bun
+            - bunnative
             - python3
             - go
             - bash