feat(5632): Add comprehensive Environment API integration tests with test c…

[OMpawar-21]

Add Environment API Integration Tests

Overview

Adds comprehensive integration test coverage for Contentstack Environment API with 16 test cases covering all CRUD operations and error scenarios.

Changes

• New: Contentstack018_EnvironmentTest.cs with complete test suite
• Fix: Environment API calls now use names instead of UIDs for operations
• Coverage: All sync/async CRUD + negative path testing

Test Matrix

• **Sync Happy Path **: Create, Fetch, Query, Update, Delete
• **Async Happy Path **: CreateAsync, FetchAsync, FindAsync, UpdateAsync, DeleteAsync
• **Negative Path **: Error handling for non-existent environments (sync + async)

Notes

• Follows existing test patterns
• Uses unique naming to prevent collisions
• All credentials protected

[github-actions]

🔒 Security Scan Results

ℹ️ Note: Only vulnerabilities with available fixes (upgrades or patches) are counted toward thresholds.

Check Type	Count (with fixes)	Without fixes	Threshold	Result
🔴 Critical Severity	0	0	10	✅ Passed
🟠 High Severity	0	0	25	✅ Passed
🟡 Medium Severity	0	0	500	✅ Passed
🔵 Low Severity	0	0	1000	✅ Passed

⏱️ SLA Breach Summary

✅ No SLA breaches detected. All vulnerabilities are within acceptable time thresholds.

Severity	Breaches (with fixes)	Breaches (no fixes)	SLA Threshold (with/no fixes)	Status
🔴 Critical	0	0	15 / 30 days	✅ Passed
🟠 High	0	0	30 / 120 days	✅ Passed
🟡 Medium	0	0	90 / 365 days	✅ Passed
🔵 Low	0	0	180 / 365 days	✅ Passed

✅ BUILD PASSED - All security checks passed