Assert the read-one body carries max_permission, and add
TestHumaTaskComment_ETagReflectsPermission proving two users with different
permission on a comment's parent task (project 9: owner user6 vs read-share
user1, comment 6 on task 18) receive different ETags.
Cut narration a reader can infer from the code (envelope element type,
path-param binding, per-case test descriptions). Keep the non-obvious
rationale: IDOR scoping, RFC 9110 etag quoting, why the feature gate sits
in the registrar, and the author-only fixture crux.
The Forbidden non-author update/delete cases used user6, who also lacks access
to task 1, so they only proved access denial, not the author-only restriction.
Add cases driven by testuser1 against comment 4 on task 16 (project 7): user1
has write access via team 3 but did not author the comment (user6 did), so a
403 there genuinely exercises the authorship branch. Keep the user6 cases as
the no-access negatives, relabelled for clarity.
Add TaskComment CRUD on /api/v2 under /tasks/{task}/comments, mirroring
the project_views nested-resource shape. The resource is feature-gated by
config.ServiceEnableTaskComments, checked inside the registrar so it runs
after config has loaded. Self-registers via init()+AddRouteRegistrar; no
routes.go change. ReadAll exposes the order_by (asc/desc) query param.
Adds doc:/readOnly: tags to the shared TaskComment model fields and a
TestHumaTaskComment webtest covering list/read/create/update/delete plus
negatives (non-author forbidden, comment under the wrong task -> 404).