chore: slim down PR description template and update deps

[ichoosetoaccept]

Summary

• Replace verbose PR description template (Why, Notes for reviewer sections) with a minimal Closes # prompt — puts issue linking front and center, removes sections nobody fills in
• Applied to both template (project/) and repo's own .github/pull_request_template.md
• Bump dev dependencies via uv sync --upgrade
• Revert lychee prek rev from nightly back to lychee-v0.23.0 (autoupdate picked up mutable tag)

Closes DOT-330

[ichoosetoaccept]

This change is part of the following stack:

• chore: slim down PR description template and update deps #299 ◀

_{Change managed by git-spice.}

[linear]

DOT-330 chore: slim down PR description template — remove unused checklist, add Linear closing keywords

[greptile-apps]

Greptile Summary

This PR simplifies both the repo's and the scaffold template's PR description template to a minimal Closes # prompt, reverts the lychee prek hook rev from the mutable nightly tag back to lychee-v0.23.0, and bumps several other dev-dependency versions via uv sync --upgrade. All changes are low-risk maintenance: project/prek.toml.jinja already carries the same lychee-v0.23.0 pin (with the matching explanatory comment), so the dual-config invariant described in CLAUDE.md is satisfied.

Confidence Score: 5/5

Safe to merge — purely maintenance changes with no logic or template rendering modifications.

All four changed files are either generated (uv.lock), configuration-only (prek.toml with version bumps and a stable tag revert), or plain markdown templates with no Jinja logic. No code paths are affected, and the dual-config invariant for prek.toml/project/prek.toml.jinja is already satisfied. No P0 or P1 findings.

No files require special attention.

Important Files Changed

Filename	Overview
.github/pull_request_template.md	PR description template simplified to a minimal "Closes #" prompt with an HTML comment; no issues.
project/.github/pull_request_template.md	Template copy of the PR description template simplified identically to the repo's own template; no issues.
prek.toml	Lychee rev reverted to stable tag "lychee-v0.23.0" (with explanatory comment), and several hook versions bumped; project/prek.toml.jinja already uses the same lychee rev so no dual-config gap.
uv.lock	Generated lock file updated via "uv sync --upgrade"; no manual edits required or expected.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Developer opens PR] --> B["PR template rendered\n(Closes #)"]
    B --> C{Issue linked?}
    C -->|Yes| D[Issue auto-closes on merge]
    C -->|No - delete line| E[PR with no linked issue]
    C -->|Ref - use Ref keyword| F[Issue linked without closing]

Loading

_{Reviews (1): Last reviewed commit: "chore: slim down PR description template..." | Re-trigger Greptile}