ci: install test dependencies in real-model nightly

[WilliamK112]

Description

The nightly real-model workflow has failed during test collection for at least its last 20 runs. It installs the semantic/benchmark/CLI runtime extras, then asks pytest to collect the entire tests/ tree before applying -k. Test modules outside the selected subset import development dependencies such as jsonschema and sqlalchemy, so collection stops before any real-model tests run.

This change:

• installs the existing dev extra alongside semantic, matching the repository's documented test environment
• removes redundant direct pytest/pytest-cov and benchmark/CLI dependencies already provided by dev
• adds a workflow contract test so the nightly lane cannot silently drop its test dependencies again

Failed run demonstrating the collection error: https://github.com/FreshCode-Org/freshdata/actions/runs/33608540511

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor / Style / Performance improvement

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Type checks (mypy) and linter checks (ruff) pass locally

Validation

• Reproduced the current workflow failure: 10 collection errors from missing jsonschema/sqlalchemy
• Built the full development artifact pipeline with Python 3.12 and the corrected install
• pytest tests -k "semantic or models or cleanbench" -q --no-cov: passed (1 skipped)
• pytest tests/test_phase5_backcompat.py --no-cov: 16 passed
• Full fast lane: 4,045 passed, 11 skipped, 12 deselected; macOS coverage remained at the current 91.98% baseline, below the repository's Linux-oriented 93% gate
• ruff check tests/test_phase5_backcompat.py: passed
• mypy src/freshdata: passed
• Workflow YAML parse and git diff --check: passed

AI-assisted implementation was reviewed and validated by the contributor.

[coderabbitai]

Important

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This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Team

Run ID: 2f3eea6c-0300-49b2-9563-6b2eb4fb75f8

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-02T15:36:25.285017Z	8c07087	PR opened

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