v0.4.0 - 49 tools: full browser control

Complete browser automation suite:

NEW in v0.4.0:

• Drag and drop (Input.dispatchMouseEvent sequence)
• File upload (DOM.setFileInputFiles)
• Iframe list + eval
• Shadow DOM piercing queries
• Full page screenshot (Emulation.setDeviceMetricsOverride)
• Element screenshot (Page.captureScreenshot with clip)
• Save as PDF (Page.printToPDF)
• Page source (HTML + MHTML)
• Table extraction to JSON
• Computed CSS styles
• Cookies via CDP Network.getCookies
• localStorage get/set/remove/all
• Viewport emulation (mobile/tablet/desktop)
• User-Agent override
• Geolocation override
• Timezone override
• Network throttling (3G, slow3G, offline)
• Tab switch, back, forward, refresh
• Hover (real mouse move)
• Double click, right click
• Select dropdown option
• Wait for element (appear/disappear)
• Get element text, attribute
• Get all links, find elements

Total: 49 MCP tools for complete browser control via CDP Input domain.