feat(adapters): external adapter plugin system with dynamic UI parser

- Plugin loader: install/reload/remove/reinstall external adapters
  from npm packages or local directories
- Plugin store persisted at ~/.paperclip/adapter-plugins.json
- Self-healing UI parser resolution with version caching
- UI: Adapter Manager page, dynamic loader, display registry
  with humanized names for unknown adapter types
- Dev watch: exclude adapter-plugins dir from tsx watcher
  to prevent mid-request server restarts during reinstall
- All consumer fallbacks use getAdapterLabel() for consistent display
- AdapterTypeDropdown uses controlled open state for proper close behavior
- Remove hermes-local from built-in UI (externalized to plugin)
- Add docs for external adapters and UI parser contract

ui/src/components/RunInvocationCard.test.tsx

@@ -0,0 +1,38 @@
+// @vitest-environment node
+
+import { describe, expect, it } from "vitest";
+import { renderToStaticMarkup } from "react-dom/server";
+import { ThemeProvider } from "../context/ThemeContext";
+import { RunInvocationCard } from "../pages/AgentDetail";
+
+describe("RunInvocationCard", () => {
+  it("keeps verbose invocation details collapsed by default", () => {
+    const html = renderToStaticMarkup(
+      <ThemeProvider>
+        <RunInvocationCard
+          payload={{
+            adapterType: "claude_local",
+            cwd: "/tmp/workspace",
+            command: "claude",
+            commandArgs: ["--dangerously-skip-permissions"],
+            commandNotes: ["Prompt is piped to claude via stdin."],
+            prompt: "very long prompt body",
+            context: { triggeredBy: "board" },
+            env: { ANTHROPIC_API_KEY: "***REDACTED***" },
+          }}
+          censorUsernameInLogs={false}
+        />
+      </ThemeProvider>,
+    );
+
+    expect(html).toContain("Invocation");
+    expect(html).toContain("Adapter:");
+    expect(html).toContain("Working dir:");
+    expect(html).toContain("Details");
+    expect(html).not.toContain("Command:");
+    expect(html).not.toContain("Prompt is piped to claude via stdin.");
+    expect(html).not.toContain("very long prompt body");
+    expect(html).not.toContain("ANTHROPIC_API_KEY");
+    expect(html).not.toContain("triggeredBy");
+  });
+});