add misc setup docs and workflows

.github/auto_request_review.yml

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+reviewers:
+  defaults:
+    - code-owners
+  groups:
+    code-owners:
+      - Nashqueue
+      - tzdybal
+      - gupadhyaya
+    rollkit:
+      - Manav-Aggarwal
+      - S1nus
+      - tuxcanfly
+    devops:
+      - smuu
+      - sysrex
+      - jrmanes
+      - Bidon15
+    celestia:
+      - team:celestia
+files:
+  '**':
+    - code-owners
+    - rollkit
+  '**/*Dockerfile':
+    - devops
+  '.github/**':
+    - devops
+options:
+  ignore_draft: true
+  ignored_keywords:
+    - WIP
+  number_of_reviewers: 3

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
+    labels:
+      - T:dependencies
+  - package-ecosystem: gomod
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 10
+    labels:
+      - T:dependencies
+  - package-ecosystem: docker
+    directory: "/docker"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 10
+    labels:
+      - T:dependencies

.github/workflows/ci_release.yml

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+name: CI and Release
+on:
+  push:
+    branches:
+      - main
+    # Trigger on version tags
+    tags:
+      - 'v[0-9]+\.[0-9]+\.[0-9]+'
+      - 'v[0-9]+\.[0-9]+\.[0-9]+-rc(?:[0-9]+|\.[0-9]+)'
+  pull_request:
+  workflow_dispatch:
+    # Inputs the workflow accepts.
+    inputs:
+      version:
+        # Friendly description to be shown in the UI instead of 'name'
+        description: "Semver type of new version (major / minor / patch)"
+        # Input has to be provided for the workflow to run
+        required: true
+        type: choice
+        options:
+          - patch
+          - minor
+          - major
+
+jobs:
+  lint:
+    uses: ./.github/workflows/lint.yml
+    with:
+      GO_VERSION: "1.20"
+
+  test:
+    uses: ./.github/workflows/test.yml
+    with:
+      GO_VERSION: "1.20"
+
+  # Make a release if this is a manually trigger job, i.e. workflow_dispatch
+  release:
+    needs: [lint, test]
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'workflow_dispatch' }}
+    permissions: "write-all"
+    steps:
+      - uses: actions/checkout@v3
+      - name: Version Release
+        uses: celestiaorg/.github/.github/actions/version-release@v0.1.1
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          version-bump: ${{inputs.version}}

.github/workflows/housekeeping.yml

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+name: Housekeeping
+
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  project:
+    # ignore dependabot PRs
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    name: Add issues and PRs to project and add grooming label
+    uses: celestiaorg/.github/.github/workflows/reusable_housekeeping.yml@v0.1.1
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-labels: true
+      labels-to-add: "needs-grooming"
+      run-projects: true
+      project-url: https://github.com/orgs/rollkit/projects/7
+
+  auto-add-reviewer:
+    name: Auto add reviewer to PR
+    if: github.event.pull_request
+    uses: celestiaorg/.github/.github/workflows/reusable_housekeeping.yml@v0.1.1
+    secrets: inherit
+    permissions:
+      issues: write
+      pull-requests: write
+    with:
+      run-auto-request-review: true
+
+  auto-add-assignee:
+    # ignore dependabot PRs
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    name: Assign issue and PR to creator
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Set issue url and creator login
+        if: ${{ github.event.issue }}
+        run: |
+          echo "ISSUE=${{ github.event.issue.html_url }}" >> $GITHUB_ENV
+          echo "CREATOR=${{ github.event.issue.user.login }}" >> $GITHUB_ENV
+      - name: Set pull_request url and creator login
+        if: ${{ github.event.pull_request }}
+        # yamllint disable rule:line-length
+        run: |
+          echo "PR=${{ github.event.pull_request.html_url }}" >> $GITHUB_ENV
+          echo "CREATOR=${{ github.event.pull_request.user.login }}" >> $GITHUB_ENV
+        # yamllint enable rule:line-length
+      - name: Assign issue to creator (issue)
+        if: ${{ github.event.issue }}
+        run: gh issue edit ${{ env.ISSUE }} --add-assignee ${{ env.CREATOR }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Assign issue to creator (PR)
+        if: ${{ github.event.pull_request }}
+        run: gh pr edit ${{ env.PR }} --add-assignee ${{ env.CREATOR }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  required-labels:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: mheap/github-action-required-labels@v4
+        with:
+          mode: minimum
+          count: 1
+          labels: "T:enhancement, T:documentation, T:code-hygiene, T:bug, T:adr, T:sdk, T:testing, T:question, T:dependencies, T:spec-and-docs, T:da-integration, T:dev-usability-and-ux" # yamllint disable-line rule:line-length

.github/workflows/lint.yml

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+# lint runs all linters in this repository
+# This workflow is triggered by ci_release.yml workflow
+name: lint
+on:
+  workflow_call:
+    inputs:
+      GO_VERSION:
+        description: "Go version to use"
+        type: string
+        required: true
+
+jobs:
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+        # This steps sets the GIT_DIFF environment variable to true
+        # if files defined in PATTERS changed
+      - uses: technote-space/get-diff-action@v6.1.2
+        with:
+          # This job will pass without running if go.mod, go.sum, and *.go
+          # wasn't modified.
+          PATTERNS: |
+            **/**.go
+            go.mod
+            go.sum
+      - uses: golangci/golangci-lint-action@v3.4.0
+        with:
+          version: latest
+          args: --timeout 10m
+          github-token: ${{ secrets.github_token }}
+        if: env.GIT_DIFF
+
+  yamllint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: celestiaorg/.github/.github/actions/yamllint@v0.1.1
+
+  markdown-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: celestiaorg/.github/.github/actions/markdown-lint@v0.1.1

.github/workflows/test.yml

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+# Tests / Code Coverage workflow
+# This workflow is triggered by ci_release.yml workflow
+name: Tests / Code Coverage
+on:
+  workflow_call:
+    inputs:
+      GO_VERSION:
+        description: 'Go version to use'
+        type: string
+        required: true
+
+jobs:
+  go_mod_tidy_check:
+    name: Go Mod Tidy Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+      - run: go mod tidy
+      - name: check for diff
+        run: git diff --exit-code
+
+  test_coverage:
+    name: Unit Tests Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: set up go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+      - name: Test & Coverage
+        run: make cover
+      - uses: codecov/codecov-action@v3.1.4
+        with:
+          file: ./coverage.txt
+
+  unit_test:
+    name: Run Unit Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: set up go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+      - name: execute test run
+        run: make test-unit
+
+  unit_race_test:
+    name: Run Unit Tests with Race Detector
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: set up go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+      - name: execute test run
+        run: make test-unit-race
+
+  integration_test:
+    name: Run Integration Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: set up go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ inputs.GO_VERSION }}
+      - name: Integration Tests
+        run: echo "No integration tests yet"

.gitignore

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+coverage.txt

.golangci.yml

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+run:
+  timeout: 5m
+  modules-download-mode: readonly
+  # mempool and indexer code is borrowed from Tendermint
+  skip-dirs:
+    - mempool
+    - state/indexer
+    - state/txindex
+
+linters:
+  enable:
+    - deadcode
+    - errcheck
+    - gofmt
+    - goimports
+    - gosec
+    - gosimple
+    - govet
+    - ineffassign
+    - misspell
+    - revive
+    - staticcheck
+    - structcheck
+    - typecheck
+    - unused
+    - varcheck
+
+issues:
+  exclude-use-default: false
+
+linters-settings:
+  revive:
+    rules:
+      - name: package-comments
+        disabled: true
+  goimports:
+    local-prefixes: github.com/rollkit

.markdownlint.yaml

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+default: true
+MD010:
+  code_blocks: false
+MD013: false
+MD024:
+  allow_different_nesting: true

.yamllint.yml

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+---
+# Built from docs https://yamllint.readthedocs.io/en/stable/configuration.html
+extends: default
+
+rules:
+  # 120 chars should be enough, but don't fail if a line is longer
+  line-length:
+    max: 120
+    level: warning