Merge PR #14: feat(soul): MCP connectors — /api/connectors proxy + per-connector auto-approve

Applies connector-specific additions from feat/connectors-soul:
- chat.el: connector_tools_json(), agentic_tools_all(), call_mcp_bridge(),
  tool_auto_approved() and mcp__ dispatch in dispatch_tool()
- routes.el: connectd_get/post, handle_connectors(), /api/connectors routing
  in GET and POST sections
- MEMORY_RECALL_BUG.md: investigation notes on memory retrieval failure

The agentic loop rewrite in the source branch was not applied — it conflicts
with the tool-bridge pattern from PR #5 which is the chosen design for
client-side MCP tool execution. The connectors themselves are now fully
wired: connector tools surface as mcp__<server>__<tool> in the tools array
and dispatch to neuron-connectd via call_mcp_bridge().

routes.el

@@ -207,6 +207,59 @@ fn route_sessions() -> String {
     return results
 }
 
+// ---------------------------------------------------------------------------
+// MCP Connectors proxy — thin pass-through to neuron-connectd on :7771.
+// The UI talks to ONE origin (the soul); all MCP/config complexity lives in
+// the bridge. Bridge-down returns a clear error (not a panic).
+// ---------------------------------------------------------------------------
+
+fn connectd_get(suffix: String) -> String {
+    let out: String = exec_capture("curl -s --max-time 5 http://127.0.0.1:7771" + suffix)
+    if str_eq(out, "") {
+        return "{\"ok\":false,\"error\":\"connector bridge unreachable (neuron-connectd on :7771)\"}"
+    }
+    return out
+}
+
+// POST passthrough: request body is written to a temp file and passed via -d @file
+// so arbitrary JSON cannot reach the shell as a command-line argument.
+fn connectd_post(suffix: String, body: String) -> String {
+    let eff: String = if str_eq(body, "") { "{}" } else { body }
+    let tmp: String = "/tmp/neuron-connectors-req.json"
+    fs_write(tmp, eff)
+    let out: String = exec_capture("curl -s --max-time 20 -X POST http://127.0.0.1:7771" + suffix + " -H 'Content-Type: application/json' -d @" + tmp)
+    if str_eq(out, "") {
+        return "{\"ok\":false,\"error\":\"connector bridge unreachable (neuron-connectd on :7771)\"}"
+    }
+    return out
+}
+
+fn handle_connectors(method: String, clean: String, body: String) -> String {
+    if str_eq(method, "GET") {
+        // /api/connectors -> each configured server with status, tools, auth, auto-approve.
+        return connectd_get("/mcp/servers")
+    }
+    if str_eq(clean, "/api/connectors/add") {
+        return connectd_post("/mcp/servers/add", body)
+    }
+    if str_eq(clean, "/api/connectors/toggle") {
+        return connectd_post("/mcp/servers/toggle", body)
+    }
+    if str_eq(clean, "/api/connectors/auto-approve") {
+        return connectd_post("/mcp/servers/auto-approve", body)
+    }
+    if str_eq(clean, "/api/connectors/remove") {
+        return connectd_post("/mcp/servers/remove", body)
+    }
+    if str_eq(clean, "/api/connectors/secret") {
+        return connectd_post("/mcp/servers/secret", body)
+    }
+    if str_eq(clean, "/api/connectors/oauth/start") {
+        return connectd_post("/mcp/oauth/start", body)
+    }
+    return "{\"ok\":false,\"error\":\"unknown connectors route\"}"
+}
+
 fn handle_request(method: String, path: String, body: String) -> String {
     let clean: String = strip_query(path)
 
@@ -320,6 +373,9 @@ fn handle_request(method: String, path: String, body: String) -> String {
         if str_starts_with(clean, "/api/neuron/recall") {
             return handle_api_recall(method, path, body)
         }
+        if str_starts_with(clean, "/api/connectors") {
+            return handle_connectors(method, clean, body)
+        }
         return err_404(clean)
     }
 
@@ -458,6 +514,9 @@ fn handle_request(method: String, path: String, body: String) -> String {
         if str_eq(clean, "/api/neuron/cultivate") {
             return handle_api_cultivate(body)
         }
+        if str_starts_with(clean, "/api/connectors") {
+            return handle_connectors(method, clean, body)
+        }
         return err_404(clean)
     }