refactor: Types and tmp caching (#91)

Refactored a few things
- Fixed base DhService + constructor type in preparation for DHE support
- Installed @deephaven/jsapi-types and deleted shim types
- Tweaked tmp storage to store to src/dist root and to store jsapi by
server url
- Enabled `no-unused-vars` linting rule

supports #79

.eslintrc.json

@@ -13,6 +13,7 @@
     "eqeqeq": ["warn", "always", { "null": "ignore" }],
     "no-console": "warn",
     "no-throw-literal": "warn",
+    "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
     "semi": "off"
   },
   "overrides": [

package.json

@@ -147,6 +147,7 @@
     }
   },
   "devDependencies": {
+    "@deephaven/jsapi-types": "^1.0.0-dev0.35.3",
     "@types/node": "20.14.10",
     "@types/vscode": "^1.91.0",
     "@types/ws": "^8.5.10",

src/common/constants.ts

@@ -1,3 +1,5 @@
+import * as path from 'node:path';
+
 export const CONFIG_KEY = 'vscode-deephaven';
 export const CONFIG_CORE_SERVERS = 'core-servers';
 
@@ -17,3 +19,5 @@ export const DOWNLOAD_LOGS_TEXT = 'Download Logs';
 export const SERVER_LANGUAGE_SET = new Set(['python', 'groovy']) as ReadonlySet<
   'python' | 'groovy'
 >;
+
+export const TMP_DIR_ROOT = path.join(__dirname, '..', 'tmp');