change: initial commit

.gitattributes

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+app/assets/** linguist-vendored

.github/ISSUE_TEMPLATE.md

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+Hi,
+
+Before creating an issue, please check out the Contributing Guide:
+
+https://github.com/ankane/pghero/blob/master/CONTRIBUTING.md
+
+Thanks!

.github/workflows/build.yml

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+name: build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - ruby: 3.3
+            gemfile: gemfiles/activerecord72.gemfile
+            postgres: 16
+          - ruby: 3.3
+            gemfile: Gemfile
+            postgres: 14
+          - ruby: 3.2
+            gemfile: gemfiles/activerecord70.gemfile
+            postgres: 12
+          - ruby: 3.1
+            gemfile: gemfiles/activerecord61.gemfile
+            postgres: 10
+    env:
+      BUNDLE_GEMFILE: ${{ matrix.gemfile }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - uses: ankane/setup-postgres@v1
+        with:
+          postgres-version: ${{ matrix.postgres }}
+          database: pghero_test
+          config: |
+            shared_preload_libraries = 'pg_stat_statements'
+      - run: bundle exec rake test

.gitignore

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+*.gem
+*.rbc
+.bundle
+.config
+.yardoc
+*.lock
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp
+*.bundle
+*.so
+*.o
+*.a
+*.log