fix: setup UX improvements — adapter check, ENOENT, SQLite warning, VERSION, PATH docs

- setup validates adapter binary availability, prints install command if missing
- setup prints 'Config saved to <path> ✓' on success
- spawn ENOENT gives actionable error with which command
- SQLite ExperimentalWarning suppressed via NODE_OPTIONS
- bootstrap VERSION reads cli package.json (was reading util)
- bootstrap PATH guidance is shell-agnostic

Fixes #114

packages/cli/src/commands/prompt.ts

@@ -14,10 +14,7 @@ function _findCliVersion(): string {
   for (let i = 0; i < 5; i++) {
     const candidate = join(dir, "package.json");
     try {
-      const pkg = JSON.parse(readFileSync(candidate, "utf-8")) as {
-        name?: string;
-        version?: string;
-      };
+      const pkg = JSON.parse(readFileSync(candidate, "utf-8")) as { name?: string; version?: string };
       if (pkg.name === "@united-workforce/cli") {
         return pkg.version ?? "0.0.0";
       }

packages/cli/src/commands/setup.ts

@@ -443,6 +443,7 @@ export async function cmdSetup(args: SetupArgs): Promise<Record<string, unknown>
   writeFileSync(configPath, stringify(merged, { indent: 2 }), "utf8");
 
   // Print config path to stderr (stdout is reserved for JSON output)
+  // biome-ignore lint/nursery/noConsole: CLI user-facing output
   console.error(`Config saved to ${configPath} ✓`);
 
   // Validate model connectivity
@@ -452,6 +453,7 @@ export async function cmdSetup(args: SetupArgs): Promise<Record<string, unknown>
   const agentName = _agentNameFromBinary(args.agent ?? "hermes");
   const adapterWarnings = _checkAdapterAvailability(agentName);
   for (const w of adapterWarnings) {
+    // biome-ignore lint/nursery/noConsole: CLI user-facing output
     console.error(`⚠ ${w}`);
   }