[fohara]

Cuts 0.3.0. Twelve commits have landed since v0.2.0 (e52c355), and the
[Unreleased] changelog section was empty, so tagging without this would
publish a release with no notes — release.yml takes them from the matching
CHANGELOG.md section.

• Bumps [workspace.package] version to 0.3.0 and refreshes Cargo.lock
• Adds the ## [0.3.0] - 2026-08-09 section and its link references

Why minor, not patch

lash add and the parser now share one ID derivation, so synthesized task
IDs change for titles containing inline labels or punctuation inside a word.
Tasks carrying an explicit @id: are unaffected. Under the changelog's own
"minor bumps may contain breaking changes while major is 0" rule, that belongs
in a minor bump. The changelog entry tells upgraders to run lash check-links.

What's in it

Mostly the launch-blocker sweep on the Markdown write path — lash add and
lash format both regenerated Markdown from a parsed model that did not carry
everything the source did. Several of the fixes address silent data loss that
exited 0:

• lash format deleted every section it does not model, ## Notes and
  ## References included (Stop lash format deleting sections and duplicating labels #44)
• lash format appended a duplicate copy of every inline label per run, so
  format --check never came back clean (Stop lash format deleting sections and duplicating labels #44)
• lash add spliced into the preceding annotation block, truncating multi-line
  @agent-note values on the next reindex (Fix lash add splicing into a preceding multi-line annotation #33, Keep multi-line agent notes intact through emit and parse #40)
• lash add into an empty ## Tasks section prepended above the H1, where the
  parser never saw it — written to disk, invisible to lash index, lint passed
  (Stop lash add prepending above the H1 when the Tasks section is empty #36)
• lash add overcounted the block and landed tasks under a following ## Notes
  section (Count annotation lines from the source, not from parsed metadata #43)
• lash add printed an ID different from the one the index stored (Report the task ID the index will actually store #41)
• The user-config tests wrote the developer's real ~/.lash/config.toml (Stop the user-config tests writing to the real home directory #34)

Plus one feature: the watcher channel is bounded at 256 with a full-reload
overflow path, so a branch switch reloads once instead of queueing thousands of
individual reindexes (#42).

Dev-tooling fixes (#35 flawd config, #38 macOS watcher flake, #45 activity-bar
tests) are deliberately left out of the changelog; they are in the commit
history and devlog.md.

After merge

Per the runbook in CONTRIBUTING.md:

git checkout main && git pull
git tag v0.3.0
git push origin v0.3.0

Nothing to do for the Homebrew tap — the formula is generated per release.