feat(ai-tools): catalog of AI coding CLIs, detection, enable/default, lanes for any tool (#40 A1)

server/lib/ai-tools.js loads server/data/ai-tools/*.json (38 tools, data from
Orca, MIT) plus DASHBOARD_AI_TOOLS_DIR, detects each CLI by walking PATH, and
keeps enable/default in <data dir>/ai-tools.json. shell-path.js merges the
login shell's PATH at startup and on Refresh. /api/ai-tools lists, refreshes
and toggles; /api/run/binary resolves through the catalog.

Lanes accept any catalog id (EDISABLED for a disabled one on creation, ENOTOOL
at start once a tool left the catalog). pty-run keeps the Claude/Codex
builders and builds every other tool's argv from its catalog file, pasting an
after-start prompt through a tmux buffer; every pane gets the hydrated PATH.
A per-run bypass switch appends the catalog's bypass args (Codex included).
POST /api/run now forwards sandbox/approval/resumeLast, which it dropped.
agenthub lanes add gains --tool.

bin/agenthub.js

@@ -1608,10 +1608,11 @@ async function cmdLanesAdd(args) {
   const pipeline = flag("pipeline");
   const base = flag("base");
   const slug = flag("slug");
+  const tool = flag("tool");
   if (repo) {
     if (cwd || pipeline) {
       console.error(
-        "usage: agenthub lanes add --repo <path> [--title <text>] [--base <branch>] [--slug <slug>]"
+        "usage: agenthub lanes add --repo <path> [--title <text>] [--base <branch>] [--slug <slug>] [--tool <id>]"
       );
       process.exitCode = 1;
       return;
@@ -1619,6 +1620,7 @@ async function cmdLanesAdd(args) {
     const body = { sourceRepo: repo, title: title || path.basename(repo) };
     if (base) body.base = base;
     if (slug) body.slug = slug;
+    if (tool) body.tool = tool;
     const { lane: provisioning } = await post("/api/lanes/worktree", body);
     const deadline = Date.now() + 30_000;
     let lane = provisioning;
@@ -1644,12 +1646,15 @@ async function cmdLanesAdd(args) {
     return;
   }
   if (!cwd || !title) {
-    console.error("usage: agenthub lanes add --cwd <path> --title <text> [--pipeline <id>]");
+    console.error(
+      "usage: agenthub lanes add --cwd <path> --title <text> [--pipeline <id>] [--tool <id>]"
+    );
     process.exitCode = 1;
     return;
   }
   const body = { cwd, title };
   if (pipeline) body.pipeline = pipeline;
+  if (tool) body.tool = tool;
   const { lane } = await post("/api/lanes", body);
   console.log(`${c.green("✔")} Created lane #${lane.id}: ${lane.title}`);
 }
@@ -2666,7 +2671,7 @@ async function cmdStage(args) {
   const stage = args[0];
   if (!stage || stage.startsWith("--")) {
     console.error(
-      "usage: agenthub stage <stage> [--lane <id>] [--cwd <path>] [--tool claude|codex] [--status <s>] [--evidence <text>] [--note <text>] [--result pass|fail]"
+      "usage: agenthub stage <stage> [--lane <id>] [--cwd <path>] [--tool <id>] [--status <s>] [--evidence <text>] [--note <text>] [--result pass|fail]"
     );
     process.exitCode = 1;
     return;
@@ -2789,10 +2794,14 @@ const COMMAND_GROUPS = [
     "Lanes",
     [
       ["lanes", "", "List lanes with stage, liveness and progress"],
-      ["lanes add", "--cwd <path> --title <text>", "Create a new lane bound to a directory"],
       [
         "lanes add",
-        "--repo <path> [--title <text>] [--base <branch>] [--slug <slug>]",
+        "--cwd <path> --title <text> [--tool <id>]",
+        "Create a new lane bound to a directory (--tool: an AI Tools id, default claude)",
+      ],
+      [
+        "lanes add",
+        "--repo <path> [--title <text>] [--base <branch>] [--slug <slug>] [--tool <id>]",
         "Provision a managed worktree lane",
       ],
       [
@@ -2871,7 +2880,7 @@ const COMMAND_GROUPS = [
       [
         "stage <stage> [flags]",
         "",
-        "Report the current pipeline stage for a lane (--tool claude|codex when one cwd has both)",
+        "Report the current pipeline stage for a lane (--tool <id> when one cwd has lanes for two tools)",
       ],
       ["feature list", "[<id>]", "List every feature this lane has activated, archived or live"],
       [