chore(dist): compile PRs #56/#57/#58 into soul.c

- PR #56: vision in agentic chat path (image content block)
- PR #57: /api/connectors/call route — proxy connector tool calls
- PR #58: /api/neuron/list/<type> off-by-one fix (str_slice 16->17)

Live-verified: list/BacklogItem returns 50 nodes (was 0 before #58 fix).
Binary size: 3.8MB.

routes.elh

@@ -1,6 +1,6 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
+extern fn rate_limit_check(ip: String, path: String) -> String
 extern fn strip_query(path: String) -> String
-extern fn flag_true(body: String, key: String) -> Bool
 extern fn err_404(path: String) -> String
 extern fn err_405(method: String, path: String) -> String
 extern fn route_health() -> String
@@ -9,7 +9,7 @@ extern fn route_imprint_contextual(body: String) -> String
 extern fn route_imprint_user(body: String) -> String
 extern fn route_synthesize(body: String) -> String
 extern fn handle_dharma_recv(body: String) -> String
-extern fn route_sessions() -> String
-extern fn parse_session_id_from_path(path: String) -> String
-extern fn parse_session_subpath(path: String) -> String
+extern fn connectd_get(suffix: String) -> String
+extern fn connectd_post(suffix: String, body: String) -> String
+extern fn handle_connectors(method: String, clean: String, body: String) -> String
 extern fn handle_request(method: String, path: String, body: String) -> String