feat: add CLI Viewer Page with multi-pane layout and state management

- Implemented the CliViewerPage component for displaying CLI outputs in a configurable multi-pane layout.
- Integrated Zustand for state management, allowing for dynamic layout changes and tab management.
- Added layout options: single, split horizontal, split vertical, and 2x2 grid.
- Created viewerStore for managing layout, panes, and tabs, including actions for adding/removing panes and tabs.
- Added CoordinatorPage barrel export for easier imports.

ccw/frontend/package-lock.json

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         "clsx": "^2.1.0",
         "highlight.js": "^11.11.1",
@@ -3433,6 +3434,30 @@
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+      "license": "MIT",
+      "dependencies": {
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+        "fast-deep-equal": "^3.1.3",
+        "lodash.clamp": "^4.0.0",
+        "lodash.debounce": "^4.0.0",
+        "usehooks-ts": "^3.1.1"
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+        "react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0"
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       "license": "MIT"
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+      "license": "MIT"
+    },
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@@ -9882,6 +9931,21 @@
         "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
+    "node_modules/usehooks-ts": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/usehooks-ts/-/usehooks-ts-3.1.1.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "lodash.debounce": "^4.0.8"
+      },
+      "engines": {
+        "node": ">=16.15.0"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0  || ^17 || ^18 || ^19 || ^19.0.0-rc"
+      }
+    },
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