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/manifest.yaml

@@ -0,0 +1,53 @@
+id: yaraify
+name: YARAify
+version: 1.0.0
+description: "YARAify by abuse.ch (API v1) — YARA/file intelligence: look up a file by hash, fetch a YARA rule's text, and list recently matched files. Auth-Key authentication; stdlib-only, no extra Python dependencies."
+changelog: "1.0.0 — Initial release: lookup hash, get YARA rule, recent matches."
+category: enrichment
+
+# Per-instance configuration. abuse.ch requires an Auth-Key header.
+config_schema:
+  properties:
+    auth_key:
+      type: string
+      description: "abuse.ch Auth-Key"
+      x-soar-sensitive: true
+  required:
+    - auth_key
+
+commands:
+  - id: lookup_hash
+    name: yaraify-lookup-hash
+    description: "Look up a file by hash and get its YARA/ClamAV matches."
+    risk: read
+    inputs_schema:
+      properties:
+        hash: { type: string, description: "MD5, SHA-1, or SHA-256 hash" }
+      required: [hash]
+    outputs_schema: { properties: {} }
+  - id: get_yara_rule
+    name: yaraify-get-yara-rule
+    description: "Fetch the text of a YARA rule by name."
+    risk: read
+    inputs_schema:
+      properties:
+        rule_name: { type: string, description: "YARA rule name" }
+      required: [rule_name]
+    outputs_schema: { properties: {} }
+  - id: recent_matches
+    name: yaraify-recent-matches
+    description: "List recently matched files."
+    risk: read
+    inputs_schema:
+      properties: {}
+      required: []
+    outputs_schema: { properties: {} }
+
+  - id: test_connection
+    name: yaraify-test-connection
+    description: "Verify the Auth-Key (used by the Test button)."
+    risk: read
+    inputs_schema:
+      properties: {}
+      required: []
+    outputs_schema: { properties: {} }