tools(render): self-gate kit - session config, teleport route, runner

Lead-run visual gate: direct character login through a session config,
the owner-supplied /teleloc poses (cathedral floating stairs, Facility Hub
stairs, Holtburg house), one screenshot per pose into the automation
artifact directory, graceful close-client. The runner refuses to start
while any AcDream.App process exists and never hard-kills a client.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

tools/overhaul-selfgate/session.json

@@ -0,0 +1,18 @@
+{
+  "version": 1,
+  "process": {
+    "content": {
+      "datDirectory": "C:\\Users\\erikn\\Documents\\Asheron's Call",
+      "preparedAssetPath": "C:\\Users\\erikn\\Documents\\Asheron's Call\\acdream.pak"
+    }
+  },
+  "sessions": [
+    {
+      "id": "overhaul-selfgate",
+      "endpoint": { "host": "127.0.0.1", "port": 9000 },
+      "account": "testaccount",
+      "character": { "name": "+Acdream" },
+      "credential": { "provider": "environment", "reference": "ACDREAM_SELFGATE_PASS" }
+    }
+  ]
+}