Add support for custom headers and migrate from legacy auth

- Introduced CustomHeaders component for managing custom headers.
- Updated Sidebar to include CustomHeaders component.
- Enhanced useConnection hook to handle custom headers and legacy auth migration.
- Added tests for custom headers functionality.
- Updated package.json and package-lock.json for new dependencies.

package-lock.json

@@ -80,6 +80,7 @@
         "@radix-ui/react-popover": "^1.1.3",
         "@radix-ui/react-select": "^2.1.2",
         "@radix-ui/react-slot": "^1.1.0",
+        "@radix-ui/react-switch": "^1.2.6",
         "@radix-ui/react-tabs": "^1.1.1",
         "@radix-ui/react-toast": "^1.2.6",
         "@radix-ui/react-tooltip": "^1.1.8",
@@ -119,6 +120,7 @@
         "globals": "^15.9.0",
         "jest": "^29.7.0",
         "jest-environment-jsdom": "^29.7.0",
+        "jest-fixed-jsdom": "^0.0.9",
         "postcss": "^8.5.6",
         "tailwindcss": "^3.4.13",
         "tailwindcss-animate": "^1.0.7",
@@ -2619,6 +2621,41 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-switch": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-switch/-/react-switch-1.2.6.tgz",
+      "integrity": "sha512-bByzr1+ep1zk4VubeEVViV592vu2lHE2BZY5OnzehZqOOgogN80+mNtCqPkhn2gklJqOpxWgPoYTSnhBCqpOXQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-controllable-state": "1.2.2",
+        "@radix-ui/react-use-previous": "1.1.1",
+        "@radix-ui/react-use-size": "1.1.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-switch/node_modules/@radix-ui/primitive": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/primitive/-/primitive-1.1.3.tgz",
+      "integrity": "sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg==",
+      "license": "MIT"
+    },
     "node_modules/@radix-ui/react-tabs": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-tabs/-/react-tabs-1.1.12.tgz",
@@ -11752,6 +11789,8 @@
         "@modelcontextprotocol/sdk": "^1.17.5",
         "cors": "^2.8.5",
         "express": "^5.1.0",
+        "shell-quote": "^1.8.3",
+        "spawn-rx": "^5.1.2",
         "ws": "^8.18.0",
         "zod": "^3.25.76"
       },
@@ -11761,6 +11800,7 @@
       "devDependencies": {
         "@types/cors": "^2.8.19",
         "@types/express": "^4.17.23",
+        "@types/shell-quote": "^1.7.5",
         "@types/ws": "^8.5.12",
         "tsx": "^4.19.0",
         "typescript": "^5.6.2"