chore: fix changelog's group variable and properly handle commits newline

[divineniiquaye]

The changelog.sh produces an error when run, and when you check CHANGELOG.md, multiple commits under a group newlines are not properly handled.

ERROR git_cliff                 > Template render error:
Variable `grouped[group]` not found in context while rendering 'body': the evaluated version was `grouped."🚀 Features"`. Maybe the index is out of bounds?

This PR fixes it.

Summary by CodeRabbit

• Chores
  • Optimized changelog generation process by streamlining how commits are grouped and filtered.
  • Improved changelog output formatting for a more compact and cleaner presentation.

[coderabbitai]

📝 Walkthrough

Walkthrough

The change refactors changelog group rendering logic in a configuration file by replacing precomputed map-based grouping with per-group filtering within a loop, while also making the output format more compact by removing unnecessary line continuation characters.

Changes

Cohort / File(s)	Summary
Changelog Configuration packages/uniwind/cliff.toml	Refactored commit group iteration from precomputed map lookup to per-group filtering loop with predefined order. Simplified output formatting by consolidating multi-line commit entries into more compact single-line representations with optional author and PR number lines.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• chore: changelog order #435: Both PRs modify the changelog grouping and ordering logic in packages/uniwind/cliff.toml, with each introducing different approaches to iterating and rendering commit groups while maintaining predefined sort order.

Poem

🐰 The changelog hops along so fine,
With groups that filter line by line,
No more maps to weigh us down,
Just compact lines throughout the town! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is directly related to the main changes: fixing the group variable error and handling commit newlines in the changelog template, which matches the core issues described in the PR objectives.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/uniwind/cliff.toml`:
- Around line 19-29: The Jinja trim markers ({%- and -%}) around the per-group
loop are removing newlines and collapsing Markdown; update the loop tags so they
do not trim surrounding whitespace (remove the leading/trailing hyphens on the
`{% for commit in group_commits %}`, the `{% if commit.remote.pr_title %}`, the
corresponding `{% endif %}`/`{% endfor %}` tags and the closing `-%}` on the
group block) so newlines are preserved after `### {{ group }}` and after the
last bullet; ensure the block that renders `{{ commit_message | split(pat="\n")
| first | trim }}` remains intact but is wrapped by non-trimming `{% ... %}`
tags to preserve Markdown line breaks.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 0478151d-6842-42f7-ae10-859898807260

📥 Commits

Reviewing files that changed from the base of the PR and between dd5f432 and a5e9136.

📒 Files selected for processing (1)

• packages/uniwind/cliff.toml

[Brentlok]

fixed in #442