Fix comment permalinks with version query

[ion-lion]

Summary

Fixes #572.

Comment permalink URLs can include ?v=<comment-version-cid>. On /:comments/<author>/<commentId> routes, web should treat that v as the comment version, not as the target document version.

This PR:

• detects comment permalink routes
• keeps ?v out of the target document lookup so the document resolves normally
• passes the query CID through as commentVersion
• loads the comment via getComment(commentVersion || openCommentId)
• adds a focused regression test for the route behavior

Verification

Reproduced before patch:

• Base/parent: 063b70c39 fix(hmnet): import sqlite package for *sqlite.Stmt callbacks
• Command:

  git checkout --detach HEAD^
  corepack pnpm --filter @shm/web test app/comment-permalink-route.test.ts

• Result: failed as expected. The old behavior passed ?v=comment-version-cid as the document version:
  • expected version: null, latest: true
  • received version: "comment-version-cid", latest: false

Verified after patch:

• Branch/head: fix/comment-version-permalink / ae883eb1f Add comment permalink route regression test
• Command:

  git checkout fix/comment-version-permalink
  corepack pnpm --filter @shm/web test app/comment-permalink-route.test.ts

• Result: passed.

Additional checks:

• corepack pnpm --filter @shm/web exec prettier --check app/comment-permalink-route.test.ts
• Result: passed.
• git diff --check
• Result: passed.

Limitations:

• corepack pnpm install --frozen-lockfile reached a lifecycle failure building @sentry/profiling-node because make is missing in this environment. Enough JS dependencies were installed for the focused web Vitest target and Prettier check to run.

Repro URL

Broken before this change:

https://seedteamtalks.hyper.media/discussions/high-network-usage-in-activity-monitor/:comments/z6MkwRWdU6HY11Qzi9SQZrwSx3rxFw94ipYyiN7Dtbrcg2yU/z6GeWHYXTLa49x?v=bafy2bzacedjrx7zih3zlgvwhlvkpe3lmcvoa67ikvfrvfdqvf2ge4ky6nomhm

Works without ?v:

https://seedteamtalks.hyper.media/discussions/high-network-usage-in-activity-monitor/:comments/z6MkwRWdU6HY11Qzi9SQZrwSx3rxFw94ipYyiN7Dtbrcg2yU/z6GeWHYXTLa49x