chore: add docs dev-server launch config

Lets the Claude Code preview tooling start the docs app (pnpm --filter
docs exec next dev) on port 3105, leaving the default 3001 free for
other local processes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: sorenbs

.claude/launch.json

@@ -0,0 +1,11 @@
+{
+  "version": "0.0.1",
+  "configurations": [
+    {
+      "name": "docs",
+      "runtimeExecutable": "pnpm",
+      "runtimeArgs": ["--filter", "docs", "exec", "next", "dev", "--port", "3105"],
+      "port": 3105
+    }
+  ]
+}