Fix: Add agent provisioning progress logging

- Add step-by-step logging to waitForAgentRunning()
- Shows state, installStep, and progress updates
- Logs errors and poll failures for debugging
- Fixes invisible provisioning process issue from Dec 19 split

src/api/provisionAgent.js

@@ -230,6 +230,7 @@ async function waitForAgentRunning({ ip, timeoutMs = 10 * 60_000 }) {
   if (AGENT_TOKEN) headers["Authorization"] = `Bearer ${AGENT_TOKEN}`;
 
   const deadline = Date.now() + timeoutMs;
+  let lastLoggedStep = null;
 
   while (Date.now() < deadline) {
     try {
@@ -237,10 +238,32 @@ async function waitForAgentRunning({ ip, timeoutMs = 10 * 60_000 }) {
       if (resp.ok) {
         const data = await resp.json();
         const state = (data.state || "").toLowerCase();
-        if (state === "running") return data;
+        const step = data.installStep || data.currentStep || "unknown";
-        if (state === "error") throw new Error(data.error || "agent error");
+        const progress = data.progress || "";
+
+        // Log state changes and progress
+        if (step !== lastLoggedStep) {
+          console.log(`[AGENT ${ip}] state=${state} step=${step} ${progress}`);
+          lastLoggedStep = step;
+        }
+
+        if (state === "running") {
+          console.log(`[AGENT ${ip}] ✓ Provisioning complete`);
+          return data;
+        }
+        
+        if (state === "error") {
+          const errorMsg = data.error || "agent error";
+          console.error(`[AGENT ${ip}] ✗ ERROR:`, errorMsg);
+          throw new Error(errorMsg);
+        }
+      }
+    } catch (err) {
+      // Only log non-connection errors (agent might not be up yet)
+      if (!err.message.includes("ECONNREFUSED") && !err.message.includes("fetch failed")) {
+        console.error(`[AGENT ${ip}] Poll error:`, err.message);
+      }
     }
-    } catch {}
     await sleep(3000);
   }