style: run oxfmt repo-wide

First full pass of the pnpm fmt toolchain: markdown table alignment,
TOML array wrapping, CSS/HTML expansion in the enclosure concept page.
No content changes; mermaid blocks untouched.

docs/v0.9-robustness.md

@@ -11,7 +11,7 @@
       open there)
 - [ ] Recover from interrupted push (re-attempt on next save) — the splice
       journal + stranded-commit recovery (2026-07-13) already survive a
-      power-pull mid-push; this item is the *retry* half
+      power-pull mid-push; this item is the _retry_ half
 - [ ] Reconnect-on-stale-connection in the libgit2 http/stream layer — the
       push keep-alive race is **avoided, not fixed** (repack keeps the marking
       phase at ~3.5 s ≪ the ~30 s idle window; a multi-pack or cold-cache