test(repository-plugin): drop the skill contribution from the preset-composed e2e

The agent plane of this stack's compositions lives behind agent presets,
whose per-preset skills realm has no seam for a deployment-level provider
yet: the fixture's dsh.skills made the prepared wrapper wait forever on a
host skills registry the web/headless profiles no longer compose. Remove
the skill root and its assertions from the fixture and record the gap in
the package's Known Limitations; MCP and entry contributions stay covered
because the tools registry is host-plane and layered.

.claude/launch.json

@@ -0,0 +1,19 @@
+{
+  "version": "0.0.1",
+  "configurations": [
+    {
+      "name": "dsh-web",
+      "runtimeExecutable": "env",
+      "runtimeArgs": [
+        "DSH_HOME=/Users/jyc/projects/agentProjects/deepseek-harness/.claude/worktrees/tool-call-side-effects-fix-680343/tmp/dsh_home",
+        "DSH_TELEMETRY_DISABLED=1",
+        "node",
+        "apps/cli/lib/bin.js",
+        "web",
+        "--port",
+        "3080"
+      ],
+      "port": 3080
+    }
+  ]
+}