Effect Migration for Kilo callsites (follow-up) (#10587)

* refactor(opencode): migrate ModelCache and Config to effect-native services

Remove legacy async wrapper functions from Config module and convert
ModelCache from a stateful namespace with module-level Maps into a
proper Effect service with Context/Layer semantics.

Key changes:
- Delete Config's `makeRuntime`-based async wrappers (get, getGlobal,
  update, warnings, etc.) — all callsites now use
  `Config.Service.use(...)` through AppRuntime
- Rewrite ModelCache as an Effect service with HttpClient dependency
  injection, replacing imperative Map-based caching with Effect-native
  Ref cells and TTL logic
- Convert KiloSessions.init and KilocodeBootstrap.init into proper
  Effect services with Layer-based dependency injection
- Wire ModelCache.Service into AppLayer, ProviderAuth, ModelsDev, and
  HTTP API handler layers
- Update Permission.layer to depend on Config.Service directly instead
  of calling Config async wrappers
- Add new test files for KiloSessions and ModelCache Effect integration
- Remove stale Config.get spyOn mocks from tests that no longer need
  them (experimental-session-list, recall)
- Fix indexing-auth to use typed IndexingConfig parameter instead of
  untyped record access

* fix(model-cache): resolve race conditions in concurrent fetch and cache invalidation

Introduce versioned cache cells with proper key derivation to prevent
stale responses from overwriting fresher data during concurrent fetches.

- Add version tracking to detect and discard outdated fetch results
- Derive cache keys from provider-specific options (baseURL, token, apiKey)
  to isolate concurrent requests with different credentials
- Make ModelCache.clear async to properly await invalidation across layers
- Update OrganizationDeps.clear signature to allow Promise<void> return
- Add concurrency and ordering tests for fetch/refresh race scenarios
- Rename local variable from `state` to `entry` in kilo-sessions sync loop

* chore(opencode): remove duplicate imports and fix test layer composition

Remove duplicate `AppRuntime` imports introduced during merge and update
kilo-sessions tests to use Effect-native Auth service instead of static
module calls.

- Remove duplicate `AppRuntime` import in index.ts and instance.ts
- Add Auth.defaultLayer to test layer helper
- Refactor test to yield Auth.Service and use instance methods
- Reorder Effect.provide/Effect.ensuring for correct resource cleanup

* style(opencode): normalize kilocode_change marker comments to block format

Standardize inline `// kilocode_change` annotations across source and
test files to use consistent `// kilocode_change start` / `// kilocode_change end`
block delimiters, improving readability and grep-ability of custom
modifications.

packages/opencode/test/server/experimental-session-list.test.ts

@@ -2,7 +2,6 @@
 import { afterEach, beforeEach, describe, expect, mock, spyOn, test } from "bun:test"
 import { $ } from "bun"
 import path from "path"
-import * as Config from "../../src/config/config"
 import { WithInstance } from "../../src/project/with-instance"
 import * as Log from "@opencode-ai/core/util/log"
 import { resetDatabase } from "../fixture/db"
@@ -29,10 +28,6 @@ describe("experimental.session.list", () => {
     try {
       await $`git worktree add ${worktree} -b test-branch-${Date.now()}`.cwd(first.path).quiet()
 
-      spyOn(Config, "get").mockImplementation(
-        async () => ({ share: "manual" }) as Awaited<ReturnType<typeof Config.get>>,
-      )
-
       try {
         const { Server } = await import("../../src/server/server")
         const { Session } = await import("../../src/session/session")
@@ -99,10 +94,6 @@ describe("experimental.session.list", () => {
     try {
       await $`git worktree add ${worktree} -b test-branch-sdk-${Date.now()}`.cwd(first.path).quiet()
 
-      spyOn(Config, "get").mockImplementation(
-        async () => ({ share: "manual" }) as Awaited<ReturnType<typeof Config.get>>,
-      )
-
       try {
         const { Server } = await import("../../src/server/server")
         const { Session } = await import("../../src/session/session")