v0.13.0

Added

• task activity type, default-on. Task tool delegations to
  subagents are now visible in report and summary output. The
  subagent's returned text is surfaced as a <task-result>…</task-result>
  XML block below the row, so the LLM summary pipeline can see what the
  subagent actually did instead of only the parent's task description.
  Previously Task activities were filtered out of every report — work
  delegated to subagents was invisible to the daily summary. Use
  --include (e.g. --include user,response,bash,edit) to opt out
  per-invocation, or omit task from report.include in
  ~/.agenthud/config.yaml to opt out by default. The XML tag form
  matches the range meta-input change below — content can't forge
  the delimiter.

Changed

• Range summary input format: XML-tag delimited. Each daily summary
  is now wrapped in <day date="YYYY-MM-DD">…</day> instead of a
  # YYYY-MM-DD heading + --- separator. Two reasons: (1) the date
  travels as a structured attribute so the LLM can't conflate it with
  date headings inside a summary; (2) the --- separator collided
  with markdown horizontal rules and yaml frontmatter that a daily
  summary might legitimately contain. The bundled
  src/templates/summary-range-prompt.md was updated to match. If
  you have a customized ~/.agenthud/summary-range-prompt.md,
  agenthud will keep using yours unchanged — sync your edits against
  the new template if you want the XML-aware instructions, or delete
  the file and agenthud will regenerate it on next run.