feat: v2.5.5 — AI Router renamed AI Proxy, reload onto new builds, update no longer spins

AI Proxy (was AI Router):
- server/lib/ai-proxies.js, proxy-apply.js, routes/ai-proxies.js mounted at
  /api/ai-proxies and the old /api/ai-routers; `router` still accepted on the
  start routes; profiles move to <CLAUDE_HOME>/agenthub-proxies/
- dashboard_runs.router renamed in place to proxy: an older build on the same
  DB fails on that column, so dev and prod sharing one DB update together
- a proxy's baseUrl stored as its root (a typed /v1 made /v1/v1/messages);
  Test probes Claude /v1/messages and Codex /v1/responses
- Settings → AI Proxy (/settings/ai-router redirects), ProxyPicker

Updates:
- every tab reloads onto the new UI build when its WebSocket reconnects to a
  server of another version (lib/newBuildReload.ts, once per version)
- Update now stops waiting on a plugin chain that failed or pulled nothing
  (the old server never goes down), and reloads as soon as a new version answers

Also:
- a pane whose command exits at once says so (EPANEEXITED) instead of
  "Command failed: tmux set-option … mouse on"
- the pane drag preview draws where the pane actually lands

server/lib/pty-run.js

@@ -31,7 +31,7 @@
  */
 
 const tmux = require("./tmux");
-const { resolveRouter, routerForSpawn } = require("./router-apply");
+const { resolveProxy, proxyForSpawn } = require("./proxy-apply");
 const { desktopEnv } = require("./desktop-env");
 const { getCodexHome } = require("./codex-home");
 const aiTools = require("./ai-tools");
@@ -131,7 +131,7 @@ function buildClaudeArgv({
   initialPrompt,
   addDirs = [],
   systemPromptFile = null,
-  routerArgv = [],
+  proxyArgv = [],
 }) {
   const argv = ["claude"];
   // `--add-dir` is VARIADIC (`<directories...>`): it swallows every following
@@ -139,8 +139,8 @@ function buildClaudeArgv({
   // always ends it — after the prompt it would eat the prompt as a directory.
   if (addDirs.length) argv.push("--add-dir", ...addDirs);
   argv.push("--permission-mode", permissionMode || "auto");
-  // The session's AI Router: `--settings=<file>` (router-apply.js).
-  argv.push(...routerArgv);
+  // The session's AI Proxy: `--settings=<file>` (proxy-apply.js).
+  argv.push(...proxyArgv);
   // Claude Code makes the worktree itself (`.claude/worktrees/<name>`, branch
   // `worktree-<name>`, `.worktreeinclude`, the user's WorktreeCreate hook).
   // `=` form: `-w [name]` takes an OPTIONAL value and would otherwise swallow
@@ -182,7 +182,7 @@ function buildCodexArgv({
   resumeLast,
   bypass,
   initialPrompt,
-  routerArgv = [],
+  proxyArgv = [],
   addDirs = [],
   systemPrompt = null,
   systemPromptFile = null,
@@ -191,7 +191,7 @@ function buildCodexArgv({
   // Before the subcommand and before the prompt: `-p` layers
   // `$CODEX_HOME/<name>.config.toml` over the base config, and an option that
   // lands after the positional prompt is not an option any more.
-  argv.push(...routerArgv);
+  argv.push(...proxyArgv);
   if (resumeSessionId) argv.push("resume", resumeSessionId);
   else if (resumeLast) argv.push("resume", "--last");
   if (model) argv.push("-m", model);
@@ -266,7 +266,7 @@ function buildArgv(args, entry) {
  * @param {boolean} [args.bypass] the user ticked "bypass permissions" for THIS
  *   run; appends the catalog's bypass args/env. Claude has no catalog bypass.
  * @param {string} [args.initialPrompt]
- * @param {string} [args.router] AI Router profile THIS session runs on — a
+ * @param {string} [args.proxy] AI Proxy profile THIS session runs on — a
  *   name only, its key and endpoint come from the store; null/"native" = the
  *   vendor's own API. Claude and Codex only (`EUNSUPPORTED`).
  */
@@ -288,7 +288,7 @@ function spawnRun(args) {
     resumeLast,
     bypass,
     initialPrompt,
-    router,
+    proxy,
   } = args || {};
   if (typeof laneId !== "number" || !Number.isInteger(laneId)) {
     throw makeErr("EBADLANE", "laneId must be an integer");
@@ -345,7 +345,7 @@ function spawnRun(args) {
   if (worktree === true && entry.launcher !== "claude") {
     throw makeErr("EUNSUPPORTED", `${tool} cannot start a session in its own worktree`);
   }
-  const routerProfile = resolveRouter(tool, router); // ENOTFOUND, EUNSUPPORTED
+  const proxyProfile = resolveProxy(tool, proxy); // ENOTFOUND, EUNSUPPORTED
   if (forkSession === true) {
     if (!resumeSessionId) throw makeErr("EBADSESSION", "a fork needs resumeSessionId");
     if (entry.launcher !== "claude") {
@@ -382,7 +382,7 @@ function spawnRun(args) {
     laneId,
     tool
   );
-  const routerSpawn = routerForSpawn(tool, routerProfile);
+  const proxySpawn = proxyForSpawn(tool, proxyProfile);
   // A new Claude session gets its id from us, so the run knows the session it
   // holds from the start — a hook that lost AGENTHUB_RUN_ID (an older hook
   // handler) still finds its pane by it (routes/hooks.js → bindRunSession).
@@ -406,7 +406,7 @@ function spawnRun(args) {
       resumeLast,
       bypass: bypass === true,
       initialPrompt,
-      routerArgv: routerSpawn.argv,
+      proxyArgv: proxySpawn.argv,
     },
     entry
   );
@@ -432,7 +432,7 @@ function spawnRun(args) {
       effort: effort || null,
       resumeSessionId: resumeSessionId || null,
       worktree: worktree === true || inWorktree === true,
-      router: routerProfile ? routerProfile.name : null,
+      proxy: proxyProfile ? proxyProfile.name : null,
       prompt: initialPrompt || "",
       status: "running",
       startedAt,
@@ -446,9 +446,9 @@ function spawnRun(args) {
   // from inside it then resolves the lane exactly, instead of matching on cwd —
   // which is ambiguous now that one directory can back both a `claude` lane and
   // a `codex` lane (see bin/agenthub.js's resolveLaneArg).
-  // A codex session on an AI Router also needs the key its layer's `env_key`
+  // A codex session on an AI Proxy also needs the key its layer's `env_key`
   // names. A claude one needs nothing here — its `--settings` file carries the
-  // router — and a session on the vendor's own API needs nothing either.
+  // proxy — and a session on the vendor's own API needs nothing either.
   // The graphical session's own DISPLAY/WAYLAND_DISPLAY goes in too: the
   // server normally runs as a systemd user service with neither, so a pane it
   // starts has no clipboard at all — pasting an image into `claude` there
@@ -466,14 +466,14 @@ function spawnRun(args) {
     ...(process.env.PATH ? { PATH: process.env.PATH } : {}),
     ...desktopEnv(),
     // A codex pane must read the same home the dashboard reads — its rollout
-    // journals and the router layer `-p <name>` loads live there — and the
+    // journals and the proxy layer `-p <name>` loads live there — and the
     // tmux server's own env may predate, or never have had, CODEX_HOME.
     ...(tool === "codex" ? { CODEX_HOME: getCodexHome() } : {}),
     // No CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN: an inline claude duplicated its
     // output whenever the pane narrowed (tmux re-wraps the full-width rules and
     // pushes lines into history its redraw cannot clear). The user's own
     // `"tui"` setting decides; under fullscreen the pane scrolls in Claude.
-    ...routerSpawn.env,
+    ...proxySpawn.env,
     ...(bypass === true && entry.bypassEnv ? entry.bypassEnv : {}),
   };
 
@@ -571,7 +571,7 @@ function spawnShell({ laneId, slot = 0, cwd }) {
     effort: null,
     resumeSessionId: null,
     worktree: false,
-    router: null,
+    proxy: null,
     prompt: "",
     status: "running",
     startedAt: Date.now(),