fix: correct Docker setup, SDK async API, and docs

- Dockerfile: use explicit uvicorn command (uv run start fails without package mode)
- docker-compose: mount claude-auth volume to /root/.claude (worker runs as root)
- worker: update to Claude Code SDK async iterable API (query() returns iterator, not array)
- main.py: fix docs_url from /doc to /docs
- README: correct login instructions (exec not run --rm), add production URLs
- Add CLAUDE.md with full project documentation

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

worker/index.js

@@ -31,22 +31,21 @@ app.post("/process", async (req, res) => {
       options.resume = session_id;
     }
 
-    const messages = await query({
-      prompt,
-      options,
-    });
+    const conv = query({ prompt, options });
+    const messages = [];
+    for await (const msg of conv) {
+      messages.push(msg);
+    }
 
-    const resultText = messages
-      .filter((m) => m.type === "text")
-      .map((m) => m.text)
-      .join("\n");
-
-    const conversationId = messages.length > 0 ? messages[0].conversationId : null;
+    const resultMsg = messages.find((m) => m.type === "result");
+    if (resultMsg && resultMsg.is_error) {
+      return res.json({ success: false, error: resultMsg.result });
+    }
 
     res.json({
       success: true,
-      result: resultText,
-      session_id: conversationId || session_id,
+      result: resultMsg?.result || "",
+      session_id: resultMsg?.session_id || session_id,
     });
   } catch (error) {
     console.error("Process error:", error.message);
@@ -76,7 +75,7 @@ app.post("/summarize", async (req, res) => {
       : `Summarize this exchange in 1-2 sentences:\n\n${exchangeText}`;
 
   try {
-    const messages = await query({
+    const conv = query({
       prompt: summaryPrompt,
       options: {
         model: DEFAULT_MODEL,
@@ -85,15 +84,15 @@ app.post("/summarize", async (req, res) => {
         allowedTools: [],
       },
     });
+    const msgs = [];
+    for await (const msg of conv) {
+      msgs.push(msg);
+    }
 
-    const summaryText = messages
-      .filter((m) => m.type === "text")
-      .map((m) => m.text)
-      .join("\n");
-
+    const resultMsg = msgs.find((m) => m.type === "result");
     res.json({
       success: true,
-      summary: summaryText.trim(),
+      summary: (resultMsg?.result || "").trim(),
     });
   } catch (error) {
     console.error("Summarize error:", error.message);