v1.4.2 - Production Release: 10-Field Database & Native Auto-Updates

What's Changed in v1.4.2

• Lean 10-Field Schema: Consolidated form responses, specifications, and visit metadata into payload_json.
• Native WordPress Auto-Updates: 1-click update notifications and background automated upgrades via GitHub.
• Single-Screen Feishu / Lark Card: Concise mobile review answering Who is it? What do they want? How to contact them? in a single screen.
• Upfront Email Gate: Direct business email capture with anti-test spam filtering.
• Dual Data Export: Clean Excel CSV (with UTF-8 BOM) and JSON data export.
• Privacy Protection: Zero hardcoded personal information or private endpoints.