chore: add project configuration files

- Add package.json with extension metadata and dependencies
- Add tsconfig.json for TypeScript compilation
- Add .eslintrc.json for code linting
- Add .vscodeignore for packaging exclusions

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package.json

@@ -0,0 +1,93 @@
+{
+  "name": "qoder-cli-vscode",
+  "displayName": "qoder-cli",
+  "description": "Open terminal in a locked editor tab",
+  "version": "0.0.1",
+  "publisher": "yuantao",
+  "engines": {
+    "vscode": "^1.74.0"
+  },
+  "categories": [
+    "Other"
+  ],
+  "keywords": [
+    "terminal",
+    "tab",
+    "editor"
+  ],
+  "activationEvents": [
+    "onCommand:terminalTab.open"
+  ],
+  "main": "./out/extension.js",
+  "contributes": {
+    "commands": [
+      {
+        "command": "terminalTab.open",
+        "title": "Open Terminal Tab",
+        "category": "Terminal Tab",
+        "icon": "$(terminal)"
+      },
+      {
+        "command": "terminalTab.openInCurrentDirectory",
+        "title": "Open Terminal Tab (Current Directory)",
+        "category": "Terminal Tab",
+        "icon": "$(terminal)"
+      }
+    ],
+    "menus": {
+      "commandPalette": [
+        {
+          "command": "terminalTab.open"
+        },
+        {
+          "command": "terminalTab.openInCurrentDirectory"
+        }
+      ],
+      "editor/title": [
+        {
+          "command": "terminalTab.openInCurrentDirectory",
+          "group": "navigation",
+          "when": "editorIsOpen"
+        }
+      ],
+      "explorer/context": [
+        {
+          "command": "terminalTab.openInCurrentDirectory",
+          "group": "2_workspace@10"
+        }
+      ]
+    },
+    "configuration": {
+      "title": "Terminal Tab",
+      "properties": {
+        "terminalTab.defaultLocation": {
+          "type": "string",
+          "default": "editor",
+          "enum": ["editor", "panel"],
+          "description": "Default location for terminal tab"
+        },
+        "terminalTab.preserveFocus": {
+          "type": "boolean",
+          "default": false,
+          "description": "Preserve focus when opening terminal tab"
+        }
+      }
+    }
+  },
+  "scripts": {
+    "vscode:prepublish": "npm run compile",
+    "compile": "tsc -p ./",
+    "watch": "tsc -watch -p ./",
+    "pretest": "npm run compile && npm run lint",
+    "lint": "eslint src --ext ts",
+    "test": "node ./out/test/runTest.js"
+  },
+  "devDependencies": {
+    "@types/vscode": "^1.74.0",
+    "@types/node": "16.x",
+    "@typescript-eslint/eslint-plugin": "^5.45.0",
+    "@typescript-eslint/parser": "^5.45.0",
+    "eslint": "^8.28.0",
+    "typescript": "^4.9.4"
+  }
+}