feat: add test_connection command to all integrations for the instance Test button

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

integrations/shodan/manifest.yaml

@@ -1,8 +1,8 @@
 id: shodan
 name: Shodan
-version: 1.0.0
+version: 1.0.1
 description: "Shodan — host & network intelligence: IP enrichment, search, DNS lookups, domain info, and on-demand scanning."
-changelog: "1.0.0 — Initial release: host lookup, search, count, DNS resolve/reverse, domain info, api-info, scan status, and active scan."
+changelog: "1.0.1 — Added test_connection for the instance Test button. 1.0.0 — Initial release: host lookup, search, count, DNS resolve/reverse, domain info, api-info, scan status, and active scan."
 category: enrichment
 
 config_schema:
@@ -158,6 +158,20 @@ commands:
   # application/x-www-form-urlencoded body, which the form-based generator
   # (JSON body) cannot produce. Marked destructive: it triggers an active,
   # outbound crawl of the target and consumes scan credits.
+  # ── Connectivity test ─────────────────────────────────────────────────────
+  - id: test_connection
+    name: shodan-test-connection
+    description: "Verify connectivity and credentials (used by the Test button)."
+    risk: read
+    inputs_schema:
+      properties: {}
+      required: []
+    outputs_schema: { properties: {} }
+    request:
+      method: GET
+      path: /api-info
+      auth_ref: apikey
+
   - id: scan
     name: shodan-scan
     description: Request Shodan to actively crawl an IP or netblock (consumes scan credits).