[murongg]

Summary

Prepare v0.19.1 with the content-rule creation fix from #155 and its comparison link to v0.19.0. Generate the new release entry with git-cliff 2.14.2 and retain the existing historical entries.

Validation

• GIT_CLIFF="$PWD/.impeccable/review/tools/git-cliff-2.14.2/git-cliff" make changelog-check: 4 tests passed.
• Generated the planned release with the documented git-cliff command, then reviewed its date, fix entry and comparison link.
• Verified that all historical release entries remain byte-for-byte unchanged.
• git diff --check: passed.
• Not rerun: make check for this text-only change; fix(content): allow adding rules over HTTP #155 passed the full local check and all CI checks. The Release workflow also verifies the tagged source before publication.

Checklist

• The change is focused on one problem and follows CONTRIBUTING.md.
• Behavior changes have regression tests using synthetic data only (not applicable: changelog only).
• Validation results and any remaining gaps are documented above.
• Relevant documentation and English/Chinese UI text are updated (not applicable: no UI text changes).
• UI changes are checked for keyboard access, narrow screens, light/dark themes, and English/Chinese (not applicable: changelog only).
• No credentials, account identifiers, private request/response content, or local planning documents are included.