[divyanshujethi]

Summary of Changes

• AgentShield Zero-Leak Playwright Sandbox (createSandboxedPlaywrightRunner): Confines Playwright browser execution within zero-leak egress boundaries, blocking cloud metadata (169.254.169.254) and unauthorized public internet exfiltration, with strict environment variable secret sanitization.
• Confidence-Scored AST Patch Generator (generateAstSelectorPatch): Multi-factor scoring engine evaluating structural, textual, attribute, action, and uniqueness metrics to assign confidence grades (HIGH, MEDIUM, LOW) before generating unified diff AST patches.
• Test Coverage: 85/85 tests passing across all 20 test suites.