chore(release): v1.4.2rc1

[gloryfromca]

Summary

Cut 1.4.2rc1 so this cycle's index rework is exercised against a real PyPI
resolution before 1.4.2 goes out. The release pipeline's own smoke installs the
built wheel with --no-deps, so it cannot catch a resolution break on its own —
1.2.3 shipped broken that way.

What testers get to exercise:

• per-project primary keys in the derived index (fix(index): key rows on (app_id, project_id, id) #481), including the one-time
  re-reconcile pass on first start after the upgrade
• the POST /cascade/quiesce drain (fix(cascade): quiesce drains fully, the reconcile pass commits once #487)
• batched entry embedding per cascade pass ([Bug]: cascade embeds one request per entry -- _embed_entries never uses embed_batch, inflating the shared semaphore queue ~Nx #486)
• capped LanceDB caches and a separate query embedding budget (fix(lancedb): cap both caches, give queries their own embed budget #496)

Three files, all version number: pyproject.toml, docs/openapi.json,
uv.lock. docs/openapi.json moves with the version because
app.openapi()["info"]["version"] reads everos.__version__ from installed
package metadata, and make lint fails on a stale dump.

No CHANGELOG section: release.yml drafts a pre-release with a placeholder body
when the version has no ## [X.Y.Z] heading. The 1.4.2 section is written in the
stable release PR.

Testers must pass --pre — pip skips pre-releases by default and would
silently install 1.4.1 instead:

pip install --pre everos==1.4.2rc1

Area

• Architecture method
• Benchmark
• Use case
• Documentation
• Developer experience
• CI, build, or release

Verification

make ci                                       exit 0
  ruff check + ruff format --check + lint-imports + repo asset/file-size/
  deprecated-name/contributor-doc/datetime gates + openapi drift check
  unit        2681 passed, 4 skipped
  integration  186 passed, 7 skipped, 7 deselected
  package     built everos-1.4.2rc1 sdist + wheel, import smoke printed 1.4.2rc1

make docs-check                               exit 0
make check-openapi                            exit 0
scripts/check_commit_messages.py origin/main..HEAD   exit 0
scripts/check_pr_title.py                     exit 0   (title 25 chars; 32 after
                                                        the squash ` (#NNN)` suffix)

make check-cjk                                exit 1 — pre-existing: 10 hits in 7
  files (README badge URLs, use-cases/, a TUI demo), none touched by this diff.
  Advisory target, not wired into CI.

Soak evidence behind the #496 defaults in this release: three platforms
(macOS / Linux / Windows), idle and high-frequency-add, watching descriptors,
memory, disk and CPU. Descriptors converge on all three; disk is reclaimed on
compaction rather than accruing.

Checklist

• I kept the change scoped to the relevant area.
• I am opening this from a separate branch, not pushing directly to main.
• I updated docs, examples, or setup notes when behavior changed.
• I added or updated tests when the change affects behavior.
• I did not commit secrets, .env files, dependency folders, or generated output.
• Active relative links in Markdown files resolve.

Notes for Reviewers

The tag must be the literal PEP 440 form v1.4.2rc1 — release.yml compares it
to the pyproject.toml version as a string, and 1.4.2-rc1 would normalize to
1.4.2rc1 at build time and fail that guard.

After this merges, the publish still pauses on the release environment for a
manual approval before anything reaches PyPI.

🤖 Generated with Claude Code