fix: Resolve ruff lint violations in deployment service

[Cristhianzl]

Objective
Fix 40 ruff lint errors introduced in #11979 across the deployment service module.

Changes

• Break long string literal in DeploymentNotConfiguredError to comply with 120-char line limit (E501)
• Use TypeError instead of ValueError for type-check validations in BaseFlowArtifact (TRY004)
• Add per-file-ignore for ARG002 on deployment stub service, matching existing auth/service.py pattern
• Simplify pytest.raises blocks and remove unnecessary parentheses on raised exceptions (PT012, RSE102)

Summary by CodeRabbit

• Bug Fixes

  • Updated exception type handling in deployment schema validation for improved error consistency.

• Chores

  • Added new linting rule configuration for deployment services.
  • Updated error message formatting in deployment configuration exceptions.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 91219be and db5885e.

📒 Files selected for processing (4)

• pyproject.toml
• src/lfx/src/lfx/services/deployment/exceptions.py
• src/lfx/src/lfx/services/deployment/schema.py
• src/lfx/tests/unit/services/deployment/test_deployment_exceptions.py

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Walkthrough

This PR adds a lint rule mapping to the project configuration, updates exception message formatting, changes an exception type from ValueError to TypeError in validation logic, and adjusts test patterns to use bare exception raises with associated assertions about exception hierarchies.

Changes

Cohort / File(s)	Summary
Configuration & Linting pyproject.toml	Added lint rule mapping for deployment service file with ARG002 code (no-op stub argument indicator).
Exception Handling src/lfx/src/lfx/services/deployment/exceptions.py	Updated default message string for DeploymentNotConfiguredError by splitting into two adjacent string literals for compile-time concatenation. No behavioral impact.
Validation Logic src/lfx/src/lfx/services/deployment/schema.py	Changed exception type from ValueError to TypeError when "nodes" or "edges" validation fails in validate_data.
Test Assertions src/lfx/tests/unit/services/deployment/test_deployment_exceptions.py	Added explicit subclass assertion for CredentialResolutionError and DeploymentError. Replaced parenthesized exception calls with bare exception raises in test cases for CredentialResolutionError and DeploymentNotFoundError.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

✨ Finishing Touches

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• Commit unit tests in branch cz/fix-ruff-style

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[github-actions]

Frontend Unit Test Coverage Report

Coverage Summary

Lines	Statements	Branches	Functions
	22.87% (7981/34889)	15.45% (4224/27334)	15.6% (1147/7348)

Unit Test Results

Tests	Skipped	Failures	Errors	Time
2611	0 💤	0 ❌	0 🔥	43.246s ⏱️

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 37.31%. Comparing base (91219be) to head (db5885e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11993      +/-   ##
==========================================
- Coverage   37.32%   37.31%   -0.01%     
==========================================
  Files        1592     1592              
  Lines       78279    78277       -2     
  Branches    11824    11824              
==========================================
- Hits        29216    29212       -4     
- Misses      47443    47445       +2     
  Partials     1620     1620              

Flag	Coverage Δ
backend	57.34% <ø> (-0.01%)	⬇️
frontend	20.49% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/lfx/src/lfx/services/deployment/exceptions.py	100.00% <ø> (ø)
src/lfx/src/lfx/services/deployment/schema.py	94.06% <ø> (-0.06%)	⬇️

... and 8 files with indirect coverage changes

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