feat: gnubok-mcp npm package for Claude Desktop (#78)

* feat: add gnubok-mcp npm package for Claude Desktop

Published as gnubok-mcp@1.0.0 on npm. Users configure Claude Desktop
with `npx gnubok-mcp` + their API key. Zero dependencies, 1.3 KB.

Works as a stdio-to-HTTP bridge while Claude Desktop's OAuth connector
feature is in beta. Updated settings panel instructions to show the
npx approach instead of the OAuth connector flow.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: harden gnubok-mcp bridge (v1.0.1)

- Rename URL → MCP_URL to avoid shadowing built-in URL constructor
- Wrap non-2xx responses in JSON-RPC error instead of forwarding raw
  HTTP body (prevents CDN HTML pages from corrupting stdio stream)
- Restore select-all on Claude Desktop config snippet

Published as gnubok-mcp@1.0.1.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

components/settings/ApiKeysPanel.tsx

@@ -204,11 +204,20 @@ export function ApiKeysPanel() {
           <div>
             <p className="text-sm font-medium mb-1">Claude Desktop</p>
             <p className="text-xs text-muted-foreground mb-2">
-              Inställningar &rarr; Connectors &rarr; Add custom connector. Klistra in URL:en nedan.
-              Du loggas in automatiskt via OAuth.
+              Lägg till i <code className="text-xs">claude_desktop_config.json</code> (Inställningar &rarr; Developer):
             </p>
-            <pre className="rounded-md bg-muted p-3 text-xs font-mono overflow-x-auto select-all">
-{mcpUrl}
+            <pre className="rounded-md bg-muted p-4 text-xs font-mono overflow-x-auto select-all">
+{`{
+  "mcpServers": {
+    "gnubok": {
+      "command": "npx",
+      "args": ["gnubok-mcp"],
+      "env": {
+        "GNUBOK_API_KEY": "gnubok_sk_..."
+      }
+    }
+  }
+}`}
             </pre>
           </div>