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

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

integrations/harfanglab/manifest.yaml

@@ -1,8 +1,8 @@
 id: harfanglab
 name: HarfangLab EDR
-version: 1.1.0
+version: 1.1.1
 description: "HarfangLab EDR — endpoint detection & response: endpoint enrichment, isolation, threat-intelligence (IOC/whitelist), telemetry hunting and forensic collection jobs."
-changelog: "1.1.0 — Command names prefixed with 'harfanglab-' (e.g. harfanglab-isolate-endpoint) for easier toolbox search; command IDs unchanged. 1.0.0 — Initial release: endpoint/agent management, isolation, policy assignment, IOC & whitelist management, security-event triage, telemetry hunting (processes, network, DNS, authentications, binaries, event logs), threat hunting by hash, and forensic collection jobs (pipes, prefetch, run keys, scheduled tasks, drivers, services, processes, network, sessions, WMI, IOC scan, artifacts, RAM dump) with their result retrieval commands. Compatible with HarfangLab EDR 2.13.7+."
+changelog: "1.1.1 — Added test_connection for the instance Test button. 1.1.0 — Command names prefixed with 'harfanglab-' (e.g. harfanglab-isolate-endpoint) for easier toolbox search; command IDs unchanged. 1.0.0 — Initial release: endpoint/agent management, isolation, policy assignment, IOC & whitelist management, security-event triage, telemetry hunting (processes, network, DNS, authentications, binaries, event logs), threat hunting by hash, and forensic collection jobs (pipes, prefetch, run keys, scheduled tasks, drivers, services, processes, network, sessions, WMI, IOC scan, artifacts, RAM dump) with their result retrieval commands. Compatible with HarfangLab EDR 2.13.7+."
 category: endpoint
 
 # Per-instance configuration. Scripts use <url> as the API base and call /api/... paths.
@@ -698,3 +698,13 @@ commands:
         job_id: { type: string, description: "Job ID returned by the matching artifact job command" }
       required: [job_id]
     outputs_schema: { properties: {} }
+
+  # ── Connectivity test ─────────────────────────────────────────────────────
+  - id: test_connection
+    name: harfanglab-test-connection
+    description: "Verify connectivity and credentials (used by the Test button)."
+    risk: read
+    inputs_schema:
+      properties: {}
+      required: []
+    outputs_schema: { properties: {} }