fix(runtime): align idle timeout grammar

loopx/control_plane/effect_runtime.py

@@ -32,6 +32,7 @@
 STARTUP_READY_TIMEOUT_SECONDS = 15.0
 STARTUP_POLL_SECONDS = 0.025
 _NODE_VERSION_RE = re.compile(r"^v?(\d+)\.(\d+)\.(\d+)(?:[-+].*)?$")
+_IDLE_MS_RE = re.compile(r"[ \t\r\n\f\v]*([0-9]+)[ \t\r\n\f\v]*")
 _RUNTIME_SOURCE_SUFFIXES = frozenset({".json", ".ts"})
 _RuntimeSourceSnapshot = tuple[tuple[str, int, int, int], ...]
 
@@ -40,13 +41,13 @@ def _validate_effect_runtime_idle_ms(environment: Mapping[str, str]) -> int:
     raw = environment.get("LOOPX_EFFECT_RUNTIME_IDLE_MS")
     if raw is None:
         return DEFAULT_EFFECT_RUNTIME_IDLE_MS
-    normalized = raw.strip()
-    if not re.fullmatch(r"[0-9]+", normalized):
+    match = _IDLE_MS_RE.fullmatch(raw)
+    if match is None:
         raise EffectRuntimeStartupError(
             "LOOPX_EFFECT_RUNTIME_IDLE_MS must be a positive base-10 integer",
             diagnostic_code="invalid_runtime_idle_ms",
         )
-    parsed = int(normalized)
+    parsed = int(match.group(1))
     if not 1 <= parsed <= MAX_EFFECT_RUNTIME_IDLE_MS:
         raise EffectRuntimeStartupError(
             "LOOPX_EFFECT_RUNTIME_IDLE_MS must be between "

loopx/control_plane/effect_runtime_config.ts

@@ -3,13 +3,13 @@ export const MAX_EFFECT_RUNTIME_IDLE_MS = 2_147_483_647;
 
 export function effectRuntimeIdleMs(value: string | undefined): number {
   if (value === undefined) return DEFAULT_EFFECT_RUNTIME_IDLE_MS;
-  const normalized = value.trim();
-  if (!/^\d+$/u.test(normalized)) {
+  const match = /^[\t\n\v\f\r ]*(\d+)[\t\n\v\f\r ]*$/u.exec(value);
+  if (match === null) {
     throw new Error(
       "LOOPX_EFFECT_RUNTIME_IDLE_MS must be a positive base-10 integer",
     );
   }
-  const parsed = Number(normalized);
+  const parsed = Number(match[1]);
   if (
     !Number.isSafeInteger(parsed) || parsed < 1 ||
     parsed > MAX_EFFECT_RUNTIME_IDLE_MS

tests/fixtures/effect_runtime_idle_ms.json

@@ -4,7 +4,20 @@
   "valid": [
     { "raw": null, "value": 300000 },
     { "raw": " 250 ", "value": 250 },
+    { "raw": "\t250\n", "value": 250 },
+    { "raw": "\u000b250\u000c", "value": 250 },
     { "raw": "2147483647", "value": 2147483647 }
   ],
-  "invalid": ["", "not-a-number", "0", "-1", "1.5", "1e3", "2147483648"]
+  "invalid": [
+    "",
+    "not-a-number",
+    "0",
+    "-1",
+    "1.5",
+    "1e3",
+    "2147483648",
+    "\u0085250\u0085",
+    "\u001c250\u001c",
+    "\ufeff250\ufeff"
+  ]
 }