Apply the repo's comments guideline to src/host/** and src/shared/**: delete
comments that restate the adjacent declaration, narrate development history,
duplicate docs/compatibility.md, or walk through a function body; keep only
critical decisions and facts the code cannot self-explain (harness and log-shape
contracts, retention invariants, untrusted-input traps, plain-JSON cache
preconditions). Rewrap the survivors onto fewer, fuller lines within the 140-col
lint limit, and drop the last non-English comment fragments.
Comment lines 4,020 -> 1,026. No code change: every file is proven identical
after comment stripping, and the built lib/index.js is byte-identical to the
previous build (modulo the build-time banner).
bowenliang123
3fe1b7cf77