docs: remove ACP migration references now that REST backend is complete

Author: jacobjmc

.memory/SUMMARY.md

@@ -8,7 +8,7 @@
 
 - **Frontend**: React 19 + Vite + TypeScript
 - **Backend**: Tauri 2 (Rust)
-- **Protocol**: Migrating from ACP (JSON-RPC over stdio) to REST API (`opencode serve`)
+- **Protocol**: REST API (`opencode serve` — HTTP + SSE)
 
 ## Architecture Invariants
 
@@ -28,7 +28,7 @@
 
 ## Current Focus
 
-- REST API migration (from `opencode acp` to `opencode serve`)
+- REST backend polish and parity
 - Thread lifecycle and event handling polish
 - Token usage tracking and session management
 

AGENTS.md

@@ -9,7 +9,7 @@ Detailed navigation/runbooks live in:
 
 - `docs/codebase-map.md` (task-oriented file map: "if you need X, edit Y")
 - `README.md` (setup, build, release, and broader project docs)
-- `docs/shaping/rest-api-migration.md` (architecture decision: ACP to REST API migration)
+- `docs/shaping/rest-api-migration.md` (REST backend architecture and parity status)
 
 ## Project Purpose
 
@@ -29,17 +29,15 @@ We pull upstream CodexMonitor changes regularly (weekly/monthly). The fork's tra
 
 The frontend thread reducer receives events in the **same shape** as original CodexMonitor. All OpenCode-to-CodexMonitor translation happens in Rust, never in the frontend.
 
-### Backend: Migrating from ACP to REST API
+### Backend: REST API
 
-The backend is migrating from `opencode acp` (JSON-RPC over stdio) to `opencode serve` (HTTP REST + SSE). See `docs/shaping/rest-api-migration.md` for the full rationale, requirements, and implementation slices.
-
-The migration touches three files — the same three already diverged from upstream:
+The backend uses `opencode serve` (HTTP REST + SSE). The translation layer is isolated to three Rust files so frontend merges stay clean:
 
 - `src-tauri/src/backend/event_translator.rs` — protocol events to CodexMonitor event shapes
 - `src-tauri/src/shared/codex_core.rs` — all protocol methods
 - `src-tauri/src/backend/app_server.rs` — process spawn, event routing
 
-Internal Rust module paths (`codex_core.rs`, `codex/mod.rs`, etc.) are **not renamed** — only user-facing strings. This minimizes merge conflicts with upstream.
+Internal Rust module paths (`codex_core.rs`, `codex/mod.rs`, etc.) are **not renamed** — only user-facing strings. This minimizes merge conflicts with upstream. (The original CodexMonitor used Codex CLI; this fork uses OpenCode REST instead.)
 
 ## Non-Negotiable Architecture Rules
 
@@ -178,7 +176,7 @@ Use extra care in high-churn/high-complexity files:
 
 - Task-oriented code map: `docs/codebase-map.md`
 - Setup/build/release/test commands: `README.md`
-- Architecture decision (ACP to REST migration): `docs/shaping/rest-api-migration.md`
+- REST backend architecture: `docs/shaping/rest-api-migration.md`
 - Frontend event contract: `docs/app-server-events.md`
 - For OpenCode API/feature changes, refer to `opencode-server-api.mdx` and `./tmp/opencode` before implementing protocol or behavior updates.
 

src-tauri/src/backend/app_server.rs

@@ -407,7 +407,7 @@ mod urlencoding {
 }
 
 // ---------------------------------------------------------------------------
-// PATH env and command building (unchanged from ACP)
+// PATH env and command building
 // ---------------------------------------------------------------------------
 
 pub(crate) fn build_codex_path_env(codex_bin: Option<&str>) -> Option<String> {

src-tauri/src/shared/codex_core.rs

@@ -903,16 +903,15 @@ pub(crate) async fn set_thread_name_core(
 }
 
 // ---------------------------------------------------------------------------
-// Image handling (kept from ACP — same logic)
+// Image handling
 // ---------------------------------------------------------------------------
 
 const URL_IMAGE_FETCH_TIMEOUT: Duration = Duration::from_secs(10);
 const URL_IMAGE_MAX_BYTES: usize = 8 * 1024 * 1024;
 
 /// Build REST prompt parts from frontend input.
 ///
-/// REST uses `{ type: "file", mime, url: "data:...", filename }` for images
-/// instead of ACP's `{ type: "image", mimeType, data }`.
+/// REST uses `{ type: "file", mime, url: "data:...", filename }` for images.
 async fn build_rest_prompt_parts(
     text: String,
     images: Option<Vec<String>>,

src/features/settings/components/sections/SettingsCodexSection.tsx

@@ -327,7 +327,7 @@ export function SettingsCodexSection({
           </button>
         </div>
         <div className="settings-help">
-          Extra flags passed before <code>acp</code>. Use quotes for values with spaces.
+          Extra flags passed to <code>serve</code>. Use quotes for values with spaces.
         </div>
         <div className="settings-help">
           OpenCode server:{" "}
@@ -415,7 +415,7 @@ export function SettingsCodexSection({
             </div>
             <div className="settings-doctor-body">
               <div>Version: {doctorState.result.version ?? "unknown"}</div>
-              <div>ACP command: {doctorState.result.appServerOk ? "ok" : "failed"}</div>
+              <div>Server: {doctorState.result.appServerOk ? "ok" : "failed"}</div>
               <div>
                 Node:{" "}
                 {doctorState.result.nodeOk