feat: Refactor transaction management with nanostores and convert components to React

- Added @nanostores/react for state management.
- Created AccountSummary component to display account balance.
- Replaced AddTransactionForm.astro with AddTransactionForm.tsx for better state handling.
- Introduced TransactionTable.tsx for displaying transactions with edit/delete functionality.
- Updated Sidebar.astro and MainContent.astro to use React components.
- Implemented transactionStore.ts for managing current account ID and transaction editing state.
- Removed obsolete AddTransactionForm.astro and related scripts.
- Enhanced error handling and loading states in transaction forms.
This fixes issues #7, #8, #9, #10, #11

package-lock.json

@@ -10,9 +10,11 @@
       "dependencies": {
         "@astrojs/cloudflare": "^12.5.1",
         "@astrojs/react": "^4.2.5",
+        "@nanostores/react": "^1.0.0",
         "@types/react": "^19.1.2",
         "@types/react-dom": "^19.1.2",
         "astro": "^5.7.5",
+        "nanostores": "^1.0.1",
         "react": "^19.1.0",
         "react-dom": "^19.1.0"
       },
@@ -1499,6 +1501,25 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@nanostores/react": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@nanostores/react/-/react-1.0.0.tgz",
+      "integrity": "sha512-eDduyNy+lbQJMg6XxZ/YssQqF6b4OXMFEZMYKPJCCmBevp1lg0g+4ZRi94qGHirMtsNfAWKNwsjOhC+q1gvC+A==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": "^20.0.0 || >=22.0.0"
+      },
+      "peerDependencies": {
+        "nanostores": "^0.9.0 || ^0.10.0 || ^0.11.0 || ^1.0.0",
+        "react": ">=18.0.0"
+      }
+    },
     "node_modules/@noble/hashes": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.8.0.tgz",
@@ -5204,6 +5225,21 @@
         "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
       }
     },
+    "node_modules/nanostores": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/nanostores/-/nanostores-1.0.1.tgz",
+      "integrity": "sha512-kNZ9xnoJYKg/AfxjrVL4SS0fKX++4awQReGqWnwTRHxeHGZ1FJFVgTqr/eMrNQdp0Tz7M7tG/TDaX8QfHDwVCw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": "^20.0.0 || >=22.0.0"
+      }
+    },
     "node_modules/neotraverse": {
       "version": "0.6.18",
       "resolved": "https://registry.npmjs.org/neotraverse/-/neotraverse-0.6.18.tgz",