v2.1.0-provider-picker: BooCoder systemd migration + provider picker

- BooCoder moves from Docker to host systemd service (boocoder.service)
- Agent dispatch (ACP + PTY) switches from SSH to direct spawn/exec
- SSH helpers marked @deprecated (kept for one release cycle)
- Provider registry (5 providers: boocode, opencode, goose, claude, qwen)
- Agent probe with direct which/exec + model discovery (qwen settings, static claude models)
- GET /api/providers route with installed status, models, transport fallback
- ProviderPicker frontend component in CoderPane header
- External provider messages route through tasks row instead of inference enqueue
- Smart scroll: MessageList only auto-scrolls when near bottom (150px threshold)
- DB: available_agents gets models, label, transport columns
- Bug fix: loadContext SELECT includes allowed_read_paths
- Bug fix: cap hit sentinel inserted before buildMessagesPayload
- docker-compose.yml: boocoder service commented out, BOOCODER_URL env var added
- CLAUDE.md: updated docs for systemd, provider registry, JSONB gotcha, loadContext

apps/coder/src/services/agent-probe.ts

@@ -1,69 +1,91 @@
 import type { Sql } from '../db.js';
 import type { FastifyBaseLogger } from 'fastify';
-import { sshExec } from './ssh.js';
+import { exec as execCb } from 'node:child_process';
+import { promisify } from 'node:util';
+import { PROVIDERS_BY_NAME } from './provider-registry.js';
 
-const KNOWN_AGENTS: Array<{ name: string; supportsAcp: boolean }> = [
-  { name: 'opencode', supportsAcp: true },
-  { name: 'goose', supportsAcp: true },
-  { name: 'claude', supportsAcp: false },
-  { name: 'pi', supportsAcp: false },
-  { name: 'qwen', supportsAcp: false },
-];
+const exec = promisify(execCb);
+
+const KNOWN_AGENTS = ['opencode', 'goose', 'claude', 'qwen'].map((name) => ({
+  name,
+  supportsAcp: PROVIDERS_BY_NAME.get(name)?.transport === 'acp',
+}));
 
 /**
- * Probe for available agents on the HOST via SSH.
+ * Probe for available agents on the HOST.
  *
- * The boocoder container can't run agents locally — they live on the host.
- * We SSH to the host (same mechanism BooTerm uses) and check which agent
- * binaries are on PATH.
+ * v2.1.1: BooCoder runs on the host now — agents are local binaries,
+ * no SSH needed. Direct `which` / `exec` calls.
  */
 export async function probeAgents(sql: Sql, log: FastifyBaseLogger): Promise<void> {
-  log.info('agent-probe: scanning HOST for known agents via SSH');
+  log.info('agent-probe: scanning for known agents');
 
   for (const agent of KNOWN_AGENTS) {
     try {
-      // Check if the agent binary is on the host's PATH
-      const whichResult = await sshExec(`which ${agent.name}`, { timeoutMs: 10_000 });
-      const installPath = whichResult.stdout.trim();
-      if (whichResult.exitCode !== 0 || !installPath) continue;
+      const { stdout: whichOut } = await exec(`which ${agent.name}`, { timeout: 10_000 });
+      const installPath = whichOut.trim();
+      if (!installPath) continue;
 
-      // Get version
       let version: string | null = null;
       try {
-        const verResult = await sshExec(`${agent.name} --version`, { timeoutMs: 15_000 });
-        if (verResult.exitCode === 0) {
-          version = verResult.stdout.trim().slice(0, 100);
-        }
+        const { stdout: verOut } = await exec(`${agent.name} --version`, { timeout: 15_000 });
+        version = verOut.trim().slice(0, 100);
       } catch {
-        // Some agents may not support --version — that's fine
+        // Some agents may not support --version
       }
 
-      // For ACP-capable agents, verify ACP mode actually works
       let supportsAcp = agent.supportsAcp;
       if (supportsAcp) {
         try {
-          const acpCheck = await sshExec(`${agent.name} acp --help`, { timeoutMs: 10_000 });
-          supportsAcp = acpCheck.exitCode === 0;
+          await exec(`${agent.name} acp --help`, { timeout: 10_000 });
         } catch {
           supportsAcp = false;
         }
       }
 
-      // UPSERT into available_agents
+      let models: Array<{ id: string; label: string }> = [];
+      const providerDef = PROVIDERS_BY_NAME.get(agent.name);
+
+      if (providerDef?.modelSource === 'static' && providerDef.staticModels) {
+        models = providerDef.staticModels;
+      }
+
+      if (agent.name === 'qwen') {
+        try {
+          const { stdout: catOut } = await exec('cat ~/.qwen/settings.json', { timeout: 10_000 });
+          if (catOut.trim()) {
+            const settings = JSON.parse(catOut) as {
+              modelProviders?: { openai?: Array<{ id: string }> };
+            };
+            const openaiModels = settings?.modelProviders?.openai;
+            if (Array.isArray(openaiModels)) {
+              models = openaiModels.map((m) => ({ id: m.id, label: m.id }));
+            }
+          }
+        } catch {
+          // ~/.qwen/settings.json missing or unparseable
+        }
+      }
+
+      const label = providerDef?.label ?? agent.name;
+      const transport = providerDef?.transport ?? 'pty';
+
       await sql`
-        INSERT INTO available_agents (name, install_path, version, supports_acp, last_probed_at)
-        VALUES (${agent.name}, ${installPath}, ${version}, ${supportsAcp}, clock_timestamp())
+        INSERT INTO available_agents (name, install_path, version, supports_acp, last_probed_at, models, label, transport)
+        VALUES (${agent.name}, ${installPath}, ${version}, ${supportsAcp}, clock_timestamp(), ${sql.json(models as never)}, ${label}, ${transport})
         ON CONFLICT (name) DO UPDATE SET
           install_path = EXCLUDED.install_path,
           version = EXCLUDED.version,
           supports_acp = EXCLUDED.supports_acp,
-          last_probed_at = EXCLUDED.last_probed_at
+          last_probed_at = EXCLUDED.last_probed_at,
+          models = EXCLUDED.models,
+          label = EXCLUDED.label,
+          transport = EXCLUDED.transport
       `;
-      log.info({ agent: agent.name, version, installPath, supportsAcp }, 'agent-probe: found on host');
+      log.info({ agent: agent.name, version, installPath, supportsAcp, modelCount: models.length }, 'agent-probe: found');
     } catch (err) {
-      // SSH failed or agent not found — skip silently
       const msg = err instanceof Error ? err.message : String(err);
-      log.debug({ agent: agent.name, err: msg }, 'agent-probe: not found or SSH failed');
+      log.debug({ agent: agent.name, err: msg }, 'agent-probe: not found');
     }
   }