feat(release): set up changeset and packages release flow

Author: bitbeckers

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": ["@changesets/changelog-github", { "repo": "hypercerts-org/hypercerts-sdk" }],
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.changeset/initial-lexicon-release.md

@@ -0,0 +1,5 @@
+---
+"@hypercerts-org/lexicon": minor
+---
+
+Initial release of lexicon package with ATProto lexicon definitions and TypeScript types for Hypercerts protocol

.changeset/initial-sdk-core-release.md

@@ -0,0 +1,5 @@
+---
+"@hypercerts-org/sdk-core": minor
+---
+
+Initial release of sdk-core package with ATProto SDK for authentication, repository operations, and lexicon management

.changeset/initial-sdk-react-release.md

@@ -0,0 +1,5 @@
+---
+"@hypercerts-org/sdk-react": minor
+---
+
+Initial release of sdk-react package with React hooks and components for Hypercerts ATProto SDK

.github/workflows/create-prerelease-sdk.yml

@@ -0,0 +1,46 @@
+name: PR Check
+
+on:
+  pull_request:
+    branches: [main, develop]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "pnpm"
+      - run: pnpm install
+      - run: pnpm build
+      - run: pnpm test
+      - run: pnpm lint
+
+  changeset-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "pnpm"
+      - run: pnpm install
+      - name: Check for changeset
+        run: |
+          if git diff --name-only origin/${{ github.base_ref }}...HEAD | grep -q "^packages/"; then
+            if git diff --name-only origin/${{ github.base_ref }}...HEAD | grep -q "^\.changeset/.*\.md$"; then
+              echo "Changeset found"
+            else
+              echo "::warning::No changeset found. Run 'pnpm changeset' if this PR includes user-facing changes."
+            fi
+          else
+            echo "No package changes detected"
+          fi