MCP: Audit and harden native MCP server implementation #2301

Job	Run time
📊 Static checks / Code style, file formatting, and docs	38s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	3m 33s
🏁 Windows / Template w/ GCC (target=template_release, use_mingw=yes)	3m 41s
🏁 Windows / Template (target=template_release)	2m 57s
🐧 Linux / Editor with ThreadSanitizer (target=editor, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	8m 15s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	3m 46s
🏁 Windows / Editor (target=editor)	6m 19s
🐧 Linux / Template w/ Mono, debug (target=template_debug)	3m 20s
🍎 macOS / Template (target=template_release)	16m 33s
🍎 macOS / Editor (target=editor)	6m 21s
🌐 Web / Template w/o threads (target=template_release, threads=no)	3m 58s
🐧 Linux / Minimal template (target=template_release, everything disabled)	1m 54s
🐧 Linux / Template w/ Mono, release (target=template_release)	2m 21s
🍏 iOS / Template (target=template_release)	2m 20s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	3m 46s
🐧 Linux / Editor w/ Mono (target=editor)	14m 5s
	1h 23m 47s

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