feat(core): port v2 runtime fixes onto dev

Cherry-picks the packages/core changes from the v2 branch onto dev:
- combined ordered stdout/stderr in AppProcess + bash structured output
- edit/apply-patch return FileDiff info with status and line stats
- ignore no-op model switches; record reasoning timestamps
- return unexpected local tool defects to the model and continue
- keep OAuth account metadata out of request bodies
- nest OpenAI reasoning effort/summary options
- load OpenCode provider config asynchronously; batch plugin boot
- export latest public event manifest

Includes the supporting schema reasoning time field and regenerated
client/SDK types.

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

@@ -25,6 +25,20 @@ function required<T>(value: T | undefined): T {
   return value
 }
 
+function eventually<A>(
+  effect: Effect.Effect<A>,
+  predicate: (value: A) => boolean,
+  remaining = 1000,
+): Effect.Effect<A, Error> {
+  return Effect.gen(function* () {
+    const value = yield* effect
+    if (predicate(value)) return value
+    if (remaining === 0) return yield* Effect.fail(new Error("Timed out waiting for value"))
+    yield* Effect.promise(() => Bun.sleep(1))
+    return yield* eventually(effect, predicate, remaining - 1)
+  })
+}
+
 function withEnv<A, E, R>(vars: Record<string, string | undefined>, effect: () => Effect.Effect<A, E, R>) {
   return Effect.acquireUseRelease(
     Effect.sync(() => {
@@ -67,11 +81,14 @@ describe("OpencodePlugin", () => {
     Effect.acquireUseRelease(
       Effect.sync(() => {
         const authorization: Array<string | null> = []
+        const gate = Promise.withResolvers<void>()
         return {
           authorization,
+          release: gate.resolve,
           server: Bun.serve({
             port: 0,
-            fetch: (request) => {
+            fetch: async (request) => {
+              await gate.promise
               authorization.push(request.headers.get("authorization"))
               const origin = new URL(request.url).origin
               return Response.json({
@@ -110,7 +127,7 @@ describe("OpencodePlugin", () => {
           }),
         }
       }),
-      ({ authorization, server }) =>
+      ({ authorization, release, server }) =>
         Effect.gen(function* () {
           const credentials = yield* Credential.Service
           const catalog = yield* Catalog.Service
@@ -128,8 +145,15 @@ describe("OpencodePlugin", () => {
           })
 
           yield* addPlugin()
+          expect(authorization).toEqual([])
+          release()
 
-          const provider = required(yield* catalog.provider.get(ProviderV2.ID.make("remote")))
+          const provider = required(
+            yield* eventually(
+              catalog.provider.get(ProviderV2.ID.make("remote")),
+              (item) => item?.integrationID === Integration.ID.make("opencode"),
+            ),
+          )
           expect(provider).toMatchObject({
             name: "Remote",
             integrationID: "opencode",