feat: add tag_and_release workflow and improve README

- Add tag_and_release.yml that combines tag + release in one workflow
- Update binary download section with curl + tar examples for Linux/macOS

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: mpyw

.github/workflows/tag_and_release.yml

@@ -0,0 +1,25 @@
+name: Tag and Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Version to release (e.g., v1.2.3)"
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  tag:
+    uses: ./.github/workflows/tag.yml
+    with:
+      version: ${{ inputs.version }}
+
+  release:
+    needs: [tag]
+    uses: ./.github/workflows/release.yml
+    with:
+      version: ${{ inputs.version }}
+    secrets: inherit

README.md

@@ -41,9 +41,23 @@ curl -LO https://github.com/mpyw/sql-http-proxy/releases/latest/download/sql-htt
 sudo rpm -i sql-http-proxy-VERSION-1.x86_64.rpm
 ```
 
-## Binary Download
+## Binary Download (Linux / macOS)
 
-Download pre-built binaries from [GitHub Releases](https://github.com/mpyw/sql-http-proxy/releases).
+```bash
+# Set version and architecture
+export VERSION=1.0.0
+export ARCH=amd64  # or arm64
+
+# Linux
+curl -L "https://github.com/mpyw/sql-http-proxy/releases/download/v${VERSION}/sql-http-proxy_${VERSION}_linux_${ARCH}.tar.gz" | tar xz
+sudo mv sql-http-proxy /usr/local/bin/
+
+# macOS
+curl -L "https://github.com/mpyw/sql-http-proxy/releases/download/v${VERSION}/sql-http-proxy_${VERSION}_darwin_${ARCH}.tar.gz" | tar xz
+sudo mv sql-http-proxy /usr/local/bin/
+```
+
+Or download manually from [GitHub Releases](https://github.com/mpyw/sql-http-proxy/releases).
 
 ## Go Install