feat(aircoding): AirCoding V2 baseline — deterministic multi-agent architecture

Forked from OpenCode v1.17.4 with multi-agent system:
- 5 agents: aircoding, scheduler, worker, architect, reviewer
- Deterministic DAG scheduling engine (coordinator_tick)
- Tool whitelists as hard enforcement
- AirCoding validation plugin
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

packages/core/test/plugin/provider-vercel.test.ts

@@ -0,0 +1,77 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { PluginV2 } from "@opencode-ai/core/plugin"
+import { VercelPlugin } from "@opencode-ai/core/plugin/provider/vercel"
+import { ProviderV2 } from "@opencode-ai/core/provider"
+import { it, model, provider } from "./provider-helper"
+
+describe("VercelPlugin", () => {
+  it.effect("applies legacy lower-case referer headers", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(VercelPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        const item = provider("vercel", {
+          api: { type: "aisdk", package: "@ai-sdk/vercel" },
+          request: { headers: { Existing: "1" }, body: {} },
+        })
+        catalog.provider.update(item.id, (draft) => {
+          draft.api = item.api
+          draft.request = item.request
+        })
+      })
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("vercel"))).request.headers).toEqual({
+        Existing: "1",
+        "http-referer": "https://opencode.ai/",
+        "x-title": "opencode",
+      })
+    }),
+  )
+
+  it.effect("does not add legacy upper-case referer headers", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(VercelPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        const item = provider("vercel", { api: { type: "aisdk", package: "@ai-sdk/vercel" } })
+        catalog.provider.update(item.id, (draft) => {
+          draft.api = item.api
+        })
+      })
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("vercel"))).request.headers).not.toHaveProperty(
+        "HTTP-Referer",
+      )
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("vercel"))).request.headers).not.toHaveProperty("X-Title")
+    }),
+  )
+
+  it.effect("creates @ai-sdk/vercel SDKs for custom provider IDs", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      yield* plugin.add(VercelPlugin)
+      const event = yield* plugin.trigger(
+        "aisdk.sdk",
+        { model: model("custom-vercel", "v0-1.0-md"), package: "@ai-sdk/vercel", options: { name: "custom-vercel" } },
+        {},
+      )
+      expect(event.sdk).toBeDefined()
+      expect(event.sdk.languageModel("v0-1.0-md").provider).toBe("vercel.chat")
+    }),
+  )
+
+  it.effect("ignores non-Vercel providers", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(VercelPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => catalog.provider.update(provider("gateway").id, () => {}))
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("gateway"))).request.headers).toEqual({})
+    }),
+  )
+})