Add CI/CD pipeline with Gitea Actions and Docker support

- Create Dockerfile for server with multi-stage build
- Create Dockerfile for agent with multi-stage build
- Set up Gitea Actions workflow to automatically build and release binaries
- Build for all platforms: Linux (amd64/arm64), macOS (amd64/arm64), Windows (amd64)
- Generate checksums for all release artifacts
- Include Docker image building in CI/CD pipeline
- Add release upload script for manual Gitea releases
- Add comprehensive RELEASE.md documentation

scripts/upload-release.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Script to upload release artifacts to Gitea
+# Usage: ./scripts/upload-release.sh <tag> <gitea_token>
+
+set -e
+
+TAG="${1:?Tag is required (e.g., v1.0.0)}"
+GITEA_TOKEN="${2:?Gitea API token is required}"
+GITEA_URL="${GITEA_URL:-https://git.nerdnest.dev}"
+REPO_OWNER="${REPO_OWNER:-ducky}"
+REPO_NAME="${REPO_NAME:-nerd-monitor}"
+BIN_DIR="./bin"
+
+if [ ! -d "$BIN_DIR" ]; then
+    echo "Error: $BIN_DIR directory not found"
+    exit 1
+fi
+
+# Get or create release
+echo "Getting release info for tag: $TAG"
+RELEASE_JSON=$(curl -s -X GET \
+    -H "Authorization: token $GITEA_TOKEN" \
+    "$GITEA_URL/api/v1/repos/$REPO_OWNER/$REPO_NAME/releases/tags/$TAG" 2>/dev/null || echo "{}")
+
+RELEASE_ID=$(echo "$RELEASE_JSON" | jq -r '.id // empty' 2>/dev/null)
+
+if [ -z "$RELEASE_ID" ]; then
+    echo "Creating new release for tag: $TAG"
+    RELEASE_JSON=$(curl -s -X POST \
+        -H "Authorization: token $GITEA_TOKEN" \
+        -H "Content-Type: application/json" \
+        -d "{\"tag_name\":\"$TAG\",\"name\":\"Release $TAG\",\"draft\":false,\"prerelease\":false}" \
+        "$GITEA_URL/api/v1/repos/$REPO_OWNER/$REPO_NAME/releases")
+    RELEASE_ID=$(echo "$RELEASE_JSON" | jq -r '.id')
+fi
+
+echo "Release ID: $RELEASE_ID"
+
+# Upload all binaries
+echo "Uploading release artifacts..."
+for file in "$BIN_DIR"/*; do
+    if [ -f "$file" ]; then
+        filename=$(basename "$file")
+        echo "  Uploading: $filename"
+        
+        curl -s -X POST \
+            -H "Authorization: token $GITEA_TOKEN" \
+            -F "attachment=@$file" \
+            "$GITEA_URL/api/v1/repos/$REPO_OWNER/$REPO_NAME/releases/$RELEASE_ID/assets" > /dev/null
+        
+        echo "    ✓ $filename uploaded"
+    fi
+done
+
+echo ""
+echo "Release created/updated successfully!"
+echo "View at: $GITEA_URL/$REPO_OWNER/$REPO_NAME/releases/tag/$TAG"