Add !version command to overseer

src/overseer.ts

@@ -265,8 +265,29 @@ export async function runOverseer(config: OverseerConfig) {
           break;
         }
 
+        case "!version": {
+          try {
+            const { readFileSync } = await import("node:fs");
+            const { execFileSync } = await import("node:child_process");
+            const { join, dirname } = await import("node:path");
+            const { fileURLToPath } = await import("node:url");
+            const pkgDir = join(dirname(fileURLToPath(import.meta.url)), "..");
+            const pkg = JSON.parse(readFileSync(join(pkgDir, "package.json"), "utf-8"));
+            let gitHash = "";
+            try {
+              gitHash = execFileSync("git", ["rev-parse", "--short", "HEAD"], {
+                encoding: "utf-8", cwd: pkgDir, timeout: 3_000,
+              }).trim();
+            } catch {}
+            bot.say(event.target, `fireclaw v${pkg.version}${gitHash ? ` (${gitHash})` : ""}`);
+          } catch {
+            bot.say(event.target, "fireclaw (version unknown)");
+          }
+          break;
+        }
+
         case "!help": {
-          bot.say(event.target, "Commands: !invoke <template> [name] | !destroy <name> | !list | !model <name> <model> | !models | !templates | !persona <name> [text] | !logs <name> [n] | !status | !help");
+          bot.say(event.target, "Commands: !invoke !destroy !list !model !models !templates !persona !logs !status !version !help");
           break;
         }
       }