v4.0.0

• DeepSee becomes a complete vision-and-routing plugin for DeepSeek Harness. Gemini turns screenshots and pasted images into structured evidence while DeepSeek remains the only model that writes and integrates code.
• Four coding modes ship together. Flash and Pro provide direct control; Auto applies a free-first task policy; Customize lets each work category be assigned to Flash or Pro from DeepSee Settings.
• Gemini API key rotation is built in. Users can paste one key per line. DeepSee trims and deduplicates keys, moves to the next key only for authentication, quota, or rate-limit failures, and never returns saved key values to the browser.
• OpenCode routes are first-class. DeepSee discovers official DeepSeek routes, OpenCode Zen's free DeepSeek V4 Flash route, and OpenCode Go Flash/Pro routes without handing coding work to Gemini.
• Visual work is checked before delivery. Auto and Customize can capture a local preview or inspect a screenshot, ask Gemini for a strict machine-readable verdict, send material defects back to DeepSeek, and repeat within a configurable round limit.
• The public identity is now DeepSee by chang416. The package is @chang416/deepsee, the executable remains deepsee, all public templates and documentation use the canonical GitHub repository, and the visual system has been rebuilt around “Vision + Model Routing for DeepSeek Harness.”
• Open-source launch hardening. The release includes scoped npm installation, cross-platform CI, provider failover, remote-image SSRF protection, secret redaction, private paste recovery, runtime schema validation, setup guidance, focused contribution templates, and reproducible local visual-evaluation fixtures.