bceda18df0
Post-merge docs sweep for the Aug 16 scout slate. Two pages: - mcp.md: tool-result sanitization section — invisible Unicode TAG chars (U+E0000-E007F) stripped from results/resources/descriptions (#80689); vendor _meta surfaced to the model minus protocol-reserved modelcontextprotocol/mcp prefixes (#80712) - tools.md: tool result annotations section — signal-death exit notes (subprocess -signum definite, shell 128+signum hedged) (#78074); UTF-16 read_file transcoding with disclosure hint and 10MB cap (#80717) Security-policy docs (approvals/allowlist) intentionally untouched.