v0.88.0

Personal fork build of jcode v0.88.0 for branch kmou424/v0.88.0.

Built with cargo build --profile selfdev -p jcode --bin jcode
(opt-level 0 + incremental) — this fork's personal channel
is the selfdev channel, so artifacts land where
jcode self-dev --build / server-reload tooling expects.

Patch series

• [upstream-fix] fix(mcp): name search-only servers in mcp_search
• [23] feat(config): accept !{cmd} substitution for secret config values
• [24] feat(build): musl static assets + fork self-update