chore: add .python-version and .editorconfig to all templates (fixes #152, #153)

[emberb170d]

Fixes#152, #153

Added missing configuration files to all six templates:

**** (fixes#153):

• Added to templates that were missing it: celery-worker, cli-starter, django-api, fastapi-starter, mlops-sklearn-starter
• Aligns with in each template's
• Reference implementation: already had this file

**** (fixes#152):

• Added consistent editor configuration to all six templates
• 4-space indentation for Python files
• 2-space indentation for YAML, JSON, TOML files
• LF line endings, UTF-8 charset
• Trailing whitespace trimming and final newline insertion

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 41d8791a-d769-404f-a3ef-1c1cd7f6b123

📥 Commits

Reviewing files that changed from the base of the PR and between 43a8b9e and 4276e06.

📒 Files selected for processing (9)

• CONTRIBUTING.md
• README.md
• docs/AUTHORING.es.md
• templates/celery-worker/.editorconfig
• templates/cli-starter/.editorconfig
• templates/django-api/.editorconfig
• templates/fastapi-starter/.editorconfig
• templates/mlops-sklearn-starter/.editorconfig
• templates/uv-workspace-starter/.editorconfig

📝 Walkthrough

Walkthrough

Five templates now include .python-version files that specify Python 3.12.

Changes

Python version pinning

Layer / File(s)	Summary
Template version files templates/celery-worker/.python-version, templates/cli-starter/.python-version, templates/django-api/.python-version, templates/fastapi-starter/.python-version, templates/mlops-sklearn-starter/.python-version	Each file declares Python 3.12 for its template.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related PRs

• Create-Python-App/cpa-templates#154: Adds the same Python 3.12 declarations to the same five templates.
• Create-Python-App/cpa-templates#156: Adds matching .python-version files to the same templates.
• Create-Python-App/cpa-templates#158: Adds identical Python 3.12 declarations to the same five templates.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The PR adds .python-version files containing 3.12 to all five templates listed in issue #153.
Out of Scope Changes check	✅ Passed	All changes support issue #153 and no unrelated changes are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately identifies the .python-version changes but incorrectly mentions .editorconfig and all templates.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[ulises-jeremias]

Canonical confirmed — this PR combines #152 (.python-version) + #153 (.editorconfig) and remains the single PR for that scope. Duplicates #154/#155/#156/#157/#158 closed to consolidate review. Thanks @emberb170d!