feat(yaraify): new YARAify file/YARA-intel integration

YARAify (abuse.ch) API v1, 4 commands: lookup hash, get YARA rule, recent
matches. Auth-Key auth, stdlib-only.

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

integrations/yaraify/scripts/lookup_hash.py

@@ -0,0 +1,46 @@
+import json, os, sys, urllib.request, urllib.error
+
+API = "https://yaraify-api.abuse.ch/api/v1/"
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _inputs():
+    return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+
+
+def query(cfg, body):
+    data = json.dumps(body).encode("utf-8")
+    headers = {
+        "Auth-Key": str(cfg.get("auth_key", "")),
+        "Content-Type": "application/json",
+        "Accept": "application/json",
+    }
+    req = urllib.request.Request(API, data=data, headers=headers, method="POST")
+    with urllib.request.urlopen(req, timeout=60) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def _run(fn):
+    try:
+        print(json.dumps(fn(_cfg(), _inputs())))
+    except urllib.error.HTTPError as e:
+        print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+        sys.exit(1)
+    except Exception as e:
+        print(json.dumps({"error": str(e)}))
+        sys.exit(1)
+
+
+def main(cfg, inputs):
+    hash_value = inputs.get("hash")
+    if not hash_value:
+        raise Exception("hash is required")
+
+    return query(cfg, {"query": "lookup_hash", "search_term": hash_value})
+
+
+_run(main)