Add npm run reinstall script and update docs to use it

Author: j-256

CLAUDE.md

@@ -7,10 +7,11 @@ VSCode extension that makes git-crypt repositories work in the Source Control pa
 ## Key Commands
 
 ```bash
-npm run build     # Build with esbuild (bundles to dist/extension.js)
-npm run watch     # Build on file change
-npm test          # Run unit tests (node:test + tsx)
-npm run package   # Create .vsix package
+npm run build       # Build with esbuild (bundles to dist/extension.js)
+npm run watch       # Build on file change
+npm test            # Run unit tests (node:test + tsx)
+npm run package     # Create .vsix package
+npm run reinstall   # Clean, package, and install the extension locally
 ```
 
 ## Architecture
@@ -58,7 +59,6 @@ Branches: `main` (releases), `dev` (CI runs tests + dry-run builds, no publish).
 
 Build and install a local VSIX:
 ```bash
-npm run package
-code --install-extension git-crypt-vscode-*.vsix
+npm run reinstall
 ```
 Reload VSCode to pick up changes.

CONTRIBUTING.md

@@ -5,17 +5,19 @@
 ```bash
 git clone https://github.com/j-256/git-crypt-vscode.git && cd git-crypt-vscode
 npm install
-npm run package
-code --install-extension git-crypt-vscode-*.vsix
+npm run reinstall
 ```
 
+Reload VSCode to pick up changes.
+
 ## Commands
 
 ```bash
-npm run build     # Build once (esbuild -> dist/extension.js)
-npm run watch     # Build on change
-npm test          # Run unit tests (node:test + tsx)
-npm run package   # Create .vsix
+npm run build       # Build once (esbuild -> dist/extension.js)
+npm run watch       # Build on change
+npm test            # Run unit tests (node:test + tsx)
+npm run package     # Create .vsix
+npm run reinstall   # Clean, package, and install the extension locally
 ```
 
 ## Testing

package.json

@@ -44,7 +44,8 @@
     "watch": "node esbuild.js --watch",
     "test": "node --import tsx --test test/*.test.ts",
     "package": "vsce package",
-    "publish": "vsce publish"
+    "publish": "vsce publish",
+    "reinstall": "rm -f *.vsix && npm run package && code --install-extension git-crypt-vscode-*.vsix"
   },
   "devDependencies": {
     "@types/vscode": "^1.85.0",