Add !status command and web search tool

- !status: shows agent count, load, RAM, disk, uptime, Ollama model loaded
- web_search tool: agents can search via SearXNG (searx.mymx.me)
  Works in both structured and text-based tool call paths

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/overseer.ts

@@ -153,8 +153,50 @@ export async function runOverseer(config: OverseerConfig) {
           break;
         }
 
+        case "!status": {
+          try {
+            const os = await import("node:os");
+            const { execFileSync } = await import("node:child_process");
+            const agents = listAgents();
+            const uptime = Math.floor(os.uptime() / 3600);
+            const totalMem = (os.totalmem() / 1e9).toFixed(0);
+            const freeMem = (os.freemem() / 1e9).toFixed(0);
+            const load = os.loadavg()[0].toFixed(2);
+
+            // Disk free
+            let diskFree = "?";
+            try {
+              const dfOut = execFileSync("df", ["-h", "/"], { encoding: "utf-8" });
+              const parts = dfOut.split("\n")[1]?.split(/\s+/);
+              if (parts) diskFree = `${parts[3]} free / ${parts[1]}`;
+            } catch {}
+
+            // Ollama model loaded
+            let ollamaModel = "none";
+            try {
+              const http = await import("node:http");
+              const psData = await new Promise<string>((resolve, reject) => {
+                http.get("http://localhost:11434/api/ps", (res) => {
+                  const chunks: Buffer[] = [];
+                  res.on("data", (c) => chunks.push(c));
+                  res.on("end", () => resolve(Buffer.concat(chunks).toString()));
+                }).on("error", reject);
+              });
+              const running = JSON.parse(psData).models;
+              if (running?.length > 0) {
+                ollamaModel = running.map((m: { name: string }) => m.name).join(", ");
+              }
+            } catch {}
+
+            bot.say(event.target, `Agents: ${agents.length} running | Load: ${load} | RAM: ${freeMem}/${totalMem} GB free | Disk: ${diskFree} | Uptime: ${uptime}h | Ollama: ${ollamaModel}`);
+          } catch (e) {
+            bot.say(event.target, "Error getting status.");
+          }
+          break;
+        }
+
         case "!help": {
-          bot.say(event.target, "Commands: !invoke <template> [name] | !destroy <name> | !list | !model <name> <model> | !models | !templates | !help");
+          bot.say(event.target, "Commands: !invoke <template> [name] | !destroy <name> | !list | !model <name> <model> | !models | !templates | !status | !help");
           break;
         }
       }