Chore: remove lockfile, switch CI to npm install

npm recommends not committing lockfiles in library packages.
Lockfile peer dependency resolution was causing OOM in CI.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: taylortom

.github/workflows/releases.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Update npm
         run: npm install -g npm@latest
       - name: Install dependencies
-        run: npm ci
+        run: npm install
       - name: Release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/standardjs.yml

@@ -9,5 +9,5 @@ jobs:
         with:
           node-version: 'lts/*'
           cache: 'npm'
-      - run: npm ci
+      - run: npm install
       - run: npx standard

.github/workflows/tests.yml

@@ -11,5 +11,5 @@ jobs:
         with:
           node-version: 'lts/*'
           cache: 'npm'
-      - run: npm ci
+      - run: npm install
       - run: npm test

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+package-lock.json