feat(connectors): /api/connectors/call — proxy a connector tool call (pre-chat)

Adds /api/connectors/call -> connectd /mcp/call, so the app can invoke a connector tool (e.g. WhatsApp
get_pairing_qr / get_login_status for the pairing UI) through the soul, keeping app->soul->connectd
intact (UI never hits connectd directly) and working for future remote/hosted clients. elc-clean.
NOTE: soul-core change — needs dist/soul.c regen (Will), can ride the same rebuild as PR #56.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mcp-wrapper/src/main.el

@@ -267,27 +267,6 @@ fn recall_or_list(query: String, limit: Int) -> String {
     return http_post_json(neuron_url() + "/recall", body)
 }
 
-// Create a real typed node via /api/neuron/node/create (handle_api_node_create) so it is a proper
-// BacklogItem/Artifact/etc. — listable by type via /api/neuron/list/<type> — instead of a generic
-// memory blob. Maps title->label, content/description->content, project/priority->tags.
-fn create_node_typed(args: String, node_type: String, tier: String) -> String {
-    let content: String = pick_content(args)
-    if str_eq(content, "") {
-        return mcp_text_result("error: content/title is required for " + node_type)
-    }
-    let title: String = json_get_string(args, "title")
-    let label: String = if str_eq(title, "") { node_type } else { title }
-    let project: String = json_get_string(args, "project")
-    let priority: String = json_get_string(args, "priority")
-    let proj_tag: String = if str_eq(project, "") { "" } else { ",\"project:" + project + "\"" }
-    let prio_tag: String = if str_eq(priority, "") { "" } else { ",\"priority:" + priority + "\"" }
-    let tags: String = "[\"" + node_type + "\"" + proj_tag + prio_tag + "]"
-    let body: String = "{\"node_type\":\"" + node_type + "\",\"content\":\"" + json_escape(content)
-        + "\",\"label\":\"" + json_escape(label) + "\",\"tier\":\"" + tier + "\",\"tags\":" + tags + "}"
-    let resp: String = http_post_json(neuron_url() + "/node/create", body)
-    return mcp_json_result(resp)
-}
-
 fn search_with_query(args: String, default_limit: Int) -> String {
     let query: String = json_get_string(args, "query")
     if str_eq(query, "") { let query = pick_content(args) }
@@ -652,12 +631,8 @@ fn dispatch_tool_call(tool_name: String, args: String) -> String {
     }
 
     // ── Backlog + work ──────────────────────────────────────────────────────
-    // planWork: create a REAL typed BacklogItem via /api/neuron/node/create (the old path fell through
-    // create_typed_node to a generic /memory write, dropping title/project/priority and never making a
-    // BacklogItem). reviewBacklog: LIST BacklogItem nodes (was a lexical /recall that never filtered by
-    // type). Both depend on the /api/neuron/list/<type> slice fix (neuron PR #58) to round-trip.
-    if str_eq(tool_name, "planWork")         { return create_node_typed(args, "BacklogItem", "Working") }
-    if str_eq(tool_name, "reviewBacklog")    { return list_typed("BacklogItem", 50, args) }
+    if str_eq(tool_name, "planWork")         { return create_typed_node(args, "BacklogItem", "0.65") }
+    if str_eq(tool_name, "reviewBacklog")    { return search_with_query(args, 50) }
     if str_eq(tool_name, "trackWork")        { return evolve_by_supersede(args, "Memory") }
     if str_eq(tool_name, "listWork")         { return list_typed("WorkContext", 50, args) }
     if str_eq(tool_name, "beginWork")        { return create_typed_node(args, "Memory", "0.70") }

routes.el

@@ -335,6 +335,12 @@ fn handle_connectors(method: String, clean: String, body: String) -> String {
     if str_eq(clean, "/api/connectors/oauth/start") {
         return connectd_post("/mcp/oauth/start", body)
     }
+    // Call a connector tool directly (pre-chat), e.g. WhatsApp get_pairing_qr / get_login_status for
+    // the pairing UI. Body: {"name":"mcp__<server>__<tool>","input":{...}}. Keeps the app on the
+    // app->soul->connectd path (the UI never hits connectd directly) and works for remote/hosted apps.
+    if str_eq(clean, "/api/connectors/call") {
+        return connectd_post("/mcp/call", body)
+    }
     return "{\"ok\":false,\"error\":\"unknown connectors route\"}"
 }