fix(routes): fix handle_request ABI, 429 status code, soul_boot_ts write

routes.el

@@ -18,6 +18,13 @@ import "soul.elh"
 // minute). Falls back to 60 req/min if not set. The /health endpoint is
 // exempt so monitoring does not consume quota.
 //
+// State growth: each unique source IP accumulates exactly 2 state keys
+// (count + window) for the lifetime of the process. Per-IP storage is
+// bounded and constant; values reset on window expiry. In aggregate, state
+// grows linearly with distinct IPs — typical for a trusted-client service.
+// EL has no state_delete builtin, so keys from inactive IPs persist.
+// TODO: add state_delete sweep when the EL runtime exposes that primitive.
+//
 // Returns "" when the request is allowed, or a 429 JSON body when rejected.
 // ---------------------------------------------------------------------------
 fn rate_limit_check(ip: String, path: String) -> String {
@@ -54,7 +61,7 @@ fn rate_limit_check(ip: String, path: String) -> String {
     if new_count > limit {
         let retry_after: Int = 60 - (now - eff_win)
         let eff_retry: Int = if retry_after < 0 { 0 } else { retry_after }
-        return "{\"error\":\"rate limit exceeded\",\"code\":\"rate_limited\",\"retry_after_secs\":" + int_to_str(eff_retry) + "}"
+        return "{\"__status__\":429,\"error\":\"rate limit exceeded\",\"code\":\"rate_limited\",\"retry_after_secs\":" + int_to_str(eff_retry) + "}"
     }
     return ""
 }
@@ -331,11 +338,13 @@ fn handle_connectors(method: String, clean: String, body: String) -> String {
     return "{\"ok\":false,\"error\":\"unknown connectors route\"}"
 }
 
-fn handle_request(method: String, path: String, body: String, ip: String) -> String {
+fn handle_request(method: String, path: String, body: String) -> String {
     let clean: String = strip_query(path)
 
-    // Rate limit check. ip may be empty (e.g. loopback/unix socket callers) — skip
-    // enforcement when no address is available so internal tooling is never blocked.
+    // Rate limit check. Extract caller IP from REMOTE_ADDR env var (set by the
+    // EL HTTP runtime for each request). Skip enforcement when empty so
+    // loopback/internal callers are never blocked.
+    let ip: String = env("REMOTE_ADDR")
     if !str_eq(ip, "") {
         let rl_result: String = rate_limit_check(ip, clean)
         if !str_eq(rl_result, "") {

soul.el

@@ -369,6 +369,7 @@ load_identity_context()
 seed_persona_from_env()
 let boot_num: Int = mem_boot_count_inc()
 state_set("soul_boot_count", int_to_str(boot_num))
+state_set("soul_boot_ts", int_to_str(time_now()))
 println("[soul] boot #" + int_to_str(boot_num))
 emit_session_start_event()