fix: logo 右半部分从 CODING 改为 CODE

去掉难以正确渲染的 N 和 G 字母，右半部分简化为 CODE（4 字母），
与左半部分 AIR 组合为 AIR CODE。

packages/core/src/effect/keyed-mutex.ts

@@ -0,0 +1,45 @@
+export * as KeyedMutex from "./keyed-mutex"
+
+import { Effect, Semaphore } from "effect"
+
+export interface KeyedMutex<in Key> {
+  readonly size: Effect.Effect<number>
+  readonly withLock: (key: Key) => <A, E, R>(effect: Effect.Effect<A, E, R>) => Effect.Effect<A, E, R>
+}
+
+/**
+ * Creates an in-memory mutex with one lock per key. Entries are removed when no
+ * holder or waiter remains.
+ *
+ *   same key      -> queue
+ *   different key -> run independently
+ *
+ * `users` counts holders and waiters so an entry is not removed while a waiter
+ * will reuse it.
+ */
+export const makeUnsafe = <Key>(): KeyedMutex<Key> => {
+  const locks = new Map<Key, { readonly semaphore: Semaphore.Semaphore; users: number }>()
+
+  const withLock =
+    (key: Key) =>
+    <A, E, R>(effect: Effect.Effect<A, E, R>) =>
+      Effect.suspend(() => {
+        const current = locks.get(key)
+        const entry = current ?? { semaphore: Semaphore.makeUnsafe(1), users: 0 }
+        if (!current) locks.set(key, entry)
+        entry.users++
+        return entry.semaphore.withPermit(effect).pipe(
+          Effect.ensuring(
+            Effect.sync(() => {
+              entry.users--
+              if (entry.users === 0) locks.delete(key)
+            }),
+          ),
+        )
+      })
+
+  return { size: Effect.sync(() => locks.size), withLock }
+}
+
+/** Creates an in-memory keyed mutex inside an Effect workflow. */
+export const make = <Key>(): Effect.Effect<KeyedMutex<Key>> => Effect.sync(makeUnsafe<Key>)

packages/core/src/effect/layer-node-platform.ts

@@ -0,0 +1,12 @@
+import { NodeFileSystem, NodePath } from "@effect/platform-node"
+import { LLMClient, RequestExecutor } from "@opencode-ai/llm/route"
+import { FetchHttpClient } from "effect/unstable/http"
+import { LayerNode } from "./layer-node"
+
+export const filesystem = LayerNode.make(NodeFileSystem.layer, [])
+export const path = LayerNode.make(NodePath.layer, [])
+export const httpClient = LayerNode.make(FetchHttpClient.layer, [])
+export const requestExecutor = LayerNode.make(RequestExecutor.layer, [httpClient])
+export const llmClient = LayerNode.make(LLMClient.layer, [requestExecutor])
+
+export * as LayerNodePlatform from "./layer-node-platform"

packages/core/src/effect/layer-node.ts

@@ -0,0 +1,102 @@
+import { Layer } from "effect"
+
+type RuntimeLayer = Layer.Layer<never, unknown, unknown>
+type AnyNode = Node<unknown, unknown>
+type NodeList = readonly [] | readonly [AnyNode, ...AnyNode[]]
+type Output<Item> = [Item] extends [never] ? never : Item extends Node<infer A, unknown> ? A : never
+type Error<Item> = [Item] extends [never] ? never : Item extends Node<unknown, infer E> ? E : never
+type Missing<Required, Dependencies extends NodeList> = Exclude<Required, Output<Dependencies[number]>>
+type CheckDependencies<Implementation extends Layer.Any, Dependencies extends NodeList> = [
+  Missing<Layer.Services<Implementation>, Dependencies>,
+] extends [never]
+  ? unknown
+  : { readonly "Missing dependencies": Missing<Layer.Services<Implementation>, Dependencies> }
+declare const $OutputType: unique symbol
+declare const $ErrorType: unique symbol
+
+export type Node<A, E = never> = {
+  readonly kind: "layer" | "group"
+  readonly implementation?: Layer.Any
+  readonly dependencies: readonly AnyNode[]
+  readonly [$OutputType]?: () => A
+  readonly [$ErrorType]?: () => E
+}
+
+export function make<const Implementation extends Layer.Any, const Items extends NodeList>(
+  implementation: Implementation,
+  dependencies: Items & CheckDependencies<Implementation, NoInfer<Items>>,
+): Node<Layer.Success<Implementation>, Layer.Error<Implementation> | Error<Items[number]>> {
+  return { kind: "layer", implementation: implementation as Layer.Any, dependencies }
+}
+
+export function group<const Items extends NodeList>(
+  dependencies: Items,
+): Node<Output<Items[number]>, Error<Items[number]>> {
+  return { kind: "group", dependencies }
+}
+
+export type Replacement<A = unknown> = {
+  readonly source: Node<A, unknown>
+  readonly replacement: Node<A, unknown>
+}
+
+type CheckReplacementErrors<SourceError, ReplacementError> = [Exclude<ReplacementError, SourceError>] extends [never]
+  ? unknown
+  : { readonly "New replacement errors": Exclude<ReplacementError, SourceError> }
+
+export function replaceWithNode<A, E, E2>(
+  source: Node<A, E>,
+  replacement: Node<NoInfer<A>, E2> & CheckReplacementErrors<E, NoInfer<E2>>,
+): Replacement<A> {
+  return { source, replacement }
+}
+
+export function replace<A, E, E2>(
+  source: Node<A, E>,
+  replacement: Layer.Layer<NoInfer<A>, E2, never> & CheckReplacementErrors<E, NoInfer<E2>>,
+): Replacement<A> {
+  return { source, replacement: make(replacement as Layer.Layer<A, E2>, []) }
+}
+
+export function buildLayer<A, E>(node: Node<A, E>, options?: { readonly replacements?: readonly Replacement[] }) {
+  const replacements = new Map(options?.replacements?.map((item) => [item.source, item.replacement]))
+  const cache = new Map<AnyNode, RuntimeLayer>()
+  const visiting = new Set<AnyNode>()
+  const stack: AnyNode[] = []
+  const ids = new Map<AnyNode, number>()
+
+  const visit = (input: AnyNode): RuntimeLayer => {
+    const node = replacements.get(input) ?? input
+    const cached = cache.get(node)
+    if (cached) return cached
+    if (visiting.has(node)) {
+      const start = stack.indexOf(node)
+      const cycle = [...stack.slice(start), node].map((item) => `${item.kind}#${ids.get(item)}`).join(" -> ")
+      throw new Error(`Cycle detected in app graph: ${cycle}`)
+    }
+    if (!ids.has(node)) ids.set(node, ids.size + 1)
+    visiting.add(node)
+    stack.push(node)
+    try {
+      const dependencies = node.dependencies.map(visit)
+      const nonEmpty = dependencies as [RuntimeLayer, ...RuntimeLayer[]]
+      const result =
+        node.kind === "group"
+          ? dependencies.length === 0
+            ? Layer.empty
+            : Layer.mergeAll(...nonEmpty)
+          : dependencies.length === 0
+            ? (node.implementation as RuntimeLayer)
+            : Layer.provide(node.implementation as RuntimeLayer, nonEmpty)
+      cache.set(node, result)
+      return result
+    } finally {
+      stack.pop()
+      visiting.delete(node)
+    }
+  }
+
+  return visit(node) as unknown as Layer.Layer<A, E, never>
+}
+
+export * as LayerNode from "./layer-node"

packages/core/src/effect/memo-map.ts

@@ -0,0 +1,3 @@
+import { Layer } from "effect"
+
+export const memoMap = Layer.makeMemoMapUnsafe()

packages/core/src/effect/runtime.ts

@@ -0,0 +1,21 @@
+import { Layer, type Context, ManagedRuntime, type Effect } from "effect"
+import { memoMap } from "./memo-map"
+import { Observability } from "../observability"
+
+export function makeRuntime<I, S, E>(service: Context.Service<I, S>, layer: Layer.Layer<I, E>) {
+  let rt: ManagedRuntime.ManagedRuntime<I, E> | undefined
+  const getRuntime = () =>
+    (rt ??= ManagedRuntime.make(Layer.provideMerge(layer, Observability.layer) as Layer.Layer<I, E>, {
+      memoMap,
+    }))
+
+  return {
+    runSync: <A, Err>(fn: (svc: S) => Effect.Effect<A, Err, I>) => getRuntime().runSync(service.use(fn)),
+    runPromiseExit: <A, Err>(fn: (svc: S) => Effect.Effect<A, Err, I>, options?: Effect.RunOptions) =>
+      getRuntime().runPromiseExit(service.use(fn), options),
+    runPromise: <A, Err>(fn: (svc: S) => Effect.Effect<A, Err, I>, options?: Effect.RunOptions) =>
+      getRuntime().runPromise(service.use(fn), options),
+    runFork: <A, Err>(fn: (svc: S) => Effect.Effect<A, Err, I>) => getRuntime().runFork(service.use(fn)),
+    runCallback: <A, Err>(fn: (svc: S) => Effect.Effect<A, Err, I>) => getRuntime().runCallback(service.use(fn)),
+  }
+}

packages/core/src/effect/service-use.ts

@@ -0,0 +1,43 @@
+import { Context, Effect } from "effect"
+
+type EffectMethod = (...args: ReadonlyArray<never>) => Effect.Effect<unknown, unknown, unknown>
+
+type ServiceUse<Identifier, Shape> = {
+  readonly [Key in keyof Shape as Shape[Key] extends EffectMethod ? Key : never]: Shape[Key] extends (
+    ...args: infer Args
+  ) => infer Return
+    ? Args extends ReadonlyArray<unknown>
+      ? Return extends Effect.Effect<infer A, infer E, infer R>
+        ? (...args: Args) => Effect.Effect<A, E, R | Identifier>
+        : never
+      : never
+    : never
+}
+
+export const serviceUse = <Identifier, Shape>(tag: Context.Service<Identifier, Shape>) => {
+  const cache = new Map<string, (...args: unknown[]) => Effect.Effect<unknown, unknown, unknown>>()
+  // This is the only dynamic boundary: TypeScript knows the accessor shape,
+  // but Proxy property names are runtime values.
+  const access = new Proxy(
+    {},
+    {
+      get: (_, key) => {
+        if (typeof key !== "string") return undefined
+        const cached = cache.get(key)
+        if (cached) return cached
+        const accessor = (...args: unknown[]) =>
+          tag.use((service) => {
+            // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- Proxy keys are checked at runtime.
+            const method = service[key as keyof Shape]
+            if (typeof method !== "function") return Effect.die(new Error(`Service method not found: ${key}`))
+            // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- ServiceUse exposes only Effect-returning methods.
+            return (method as (...args: unknown[]) => Effect.Effect<unknown, unknown, unknown>)(...args)
+          })
+        cache.set(key, accessor)
+        return accessor
+      },
+    },
+  )
+  // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- Proxy implements the mapped accessor surface lazily.
+  return access as ServiceUse<Identifier, Shape>
+}