feat: add Kiro (AWS Agentic IDE) as a 5th provider via ACP

package.json

@@ -30,6 +30,7 @@
     "server:dev": "tsx --tsconfig server/tsconfig.json server/index.js",
     "server:dev-watch": "tsx watch --tsconfig server/tsconfig.json server/index.js",
     "client": "vite",
+    "test:server": "tsx --tsconfig server/tsconfig.json --test \"server/**/*.test.ts\"",
     "build": "npm run build:client && npm run build:server",
     "build:client": "vite build",
     "prebuild:server": "node -e \"require('node:fs').rmSync('dist-server', { recursive: true, force: true })\"",

public/api-docs.html

@@ -834,6 +834,7 @@ <h4>Branch & PR Response</h4>
             { id: 'gemini',   name: 'Google' },
             { id: 'cursor',   name: 'Cursor' },
             { id: 'opencode', name: 'OpenCode' },
+            { id: 'kiro',     name: 'AWS Kiro' },
         ];
 
         async function populateModels() {

server/index.js

@@ -52,6 +52,12 @@ import {
     isOpenCodeSessionActive,
     getActiveOpenCodeSessions,
 } from './opencode-cli.js';
+import {
+    spawnKiro,
+    abortKiroSession,
+    isKiroSessionActive,
+    getActiveKiroSessions,
+} from './kiro-cli.js';
 import sessionManager from './sessionManager.js';
 import {
     stripAnsiSequences,
@@ -110,24 +116,28 @@ const wss = createWebSocketServer(server, {
         queryCodex,
         spawnGemini,
         spawnOpenCode,
+        spawnKiro,
         abortClaudeSDKSession,
         abortCursorSession,
         abortCodexSession,
         abortGeminiSession,
         abortOpenCodeSession,
+        abortKiroSession,
         resolveToolApproval,
         isClaudeSDKSessionActive,
         isCursorSessionActive,
         isCodexSessionActive,
         isGeminiSessionActive,
         isOpenCodeSessionActive,
+        isKiroSessionActive,
         reconnectSessionWriter,
         getPendingApprovalsForSession,
         getActiveClaudeSDKSessions,
         getActiveCursorSessions,
         getActiveCodexSessions,
         getActiveGeminiSessions,
         getActiveOpenCodeSessions,
+        getActiveKiroSessions,
     },
     shell: {
         getSessionById: (sessionId) => sessionManager.getSession(sessionId),
@@ -1221,6 +1231,20 @@ app.get('/api/projects/:projectId/sessions/:sessionId/token-usage', authenticate
             });
         }
 
+        // Kiro sessions report `context_usage_percentage` per turn but not a
+        // running total/used pair compatible with this endpoint. Defer accurate
+        // accounting to a follow-up; the UI will treat Kiro as "no budget" for
+        // now (parity with Cursor/Gemini).
+        if (provider === 'kiro') {
+            return res.json({
+                used: 0,
+                total: 0,
+                breakdown: { input: 0, cacheCreation: 0, cacheRead: 0 },
+                unsupported: true,
+                message: 'Token usage tracking not available for Kiro sessions'
+            });
+        }
+
         if (provider === 'opencode') {
             const dbPath = getOpenCodeDatabasePath();
             if (!fs.existsSync(dbPath)) {