docs: add v3.64.24 release notes

Co-authored-by: Kilo <kilo@kilocode.com>

Author: CodeKing

RELEASE_NOTES_v3.64.24.md

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+# Zoo Code v3.64.24
+
+## Tool-Call Pipeline Fixes (MiMo / OpenAI-Compatible Gateways)
+
+- **Parameter serialization**: Fixed `[object Object]` leaks when models emit objects for string params (read_spec, write_spec, delete_spec, web_research, list_mcp_config, search_files, codebase_search, generate_image)
+- **Shell selection**: `execute_command` now prefers PowerShell over cmd.exe on Windows
+- **Browser tools**: `click_browser_by_text` no longer shows false "context destroyed" errors after navigation
+- **UI cleanup**: Malformed/garbled tool-call markup fragments are stripped from chat display — users never see raw broken XML
+- **Duplicate messages**: Fixed "Zoo said" text appearing twice when model emits prose + XML tool markup
+- **generate_image**: `"None"` sentinel treated as null for optional image parameter
+
+## Infrastructure
+
+- MiMo now routes tools through `convertToolsForOpenAI` (gateway-safe `strict: false`)
+- Nullable union types stripped from schemas for gateway compatibility
+- `playwright-core` correctly bundled in .vsix
+
+All tools verified working on both Xiaomi built-in and OpenAI Compatible providers.