chore: use radashi-vscode and radashi-helper (#220)

This change makes it easier for anyone working directly on a Radashi fork to use the Radashi VSCode extension, which provides a quick way to add a new function or rename/move an existing function. The radashi-helper must be installed locally for Radashi VSCode extension to work.

Co-authored-by: Alec Larson <[email protected]>

.devcontainer/devcontainer.json

@@ -12,13 +12,15 @@
     },
     "ghcr.io/joshuanianji/devcontainer-features/mount-pnpm-store": {}
   },
-  "postCreateCommand": "pnpm i",
+  "postStartCommand": "pnpm i",
   "customizations": {
     "vscode": {
       "extensions": [
         "vitest.explorer",
         "biomejs.biome",
-        "esbenp.prettier-vscode"
+        "esbenp.prettier-vscode",
+        "streetsidesoftware.code-spell-checker",
+        "aleclarson.radashi"
       ]
     }
   }

.vscode/extensions.json

@@ -3,6 +3,7 @@
     "vitest.explorer",
     "biomejs.biome",
     "esbenp.prettier-vscode",
-    "streetsidesoftware.code-spell-checker"
+    "streetsidesoftware.code-spell-checker",
+    "aleclarson.radashi"
   ]
 }

package.json

@@ -56,6 +56,7 @@
     "prettier": "^3.3.2",
     "prettier-plugin-pkg": "^0.18.1",
     "prettier-plugin-sh": "^0.14.0",
+    "radashi-helper": "^0.1.4",
     "tsup": "^8.1.0",
     "typescript": "^5.5.2",
     "vitest": "2.0.5"