Add compactStructuredEncryptionData administration command tests

[imforster]

#416
Test cases: 36
Docs: https://www.mongodb.com/docs/v8.2/reference/command/compactStructuredEncryptionData/

Summary

Adds comprehensive tests for compactStructuredEncryptionData administration command using proper DRY parametrization patterns.

Changes

• error_codes.py: Add NOT_ENCRYPTED_COLLECTION_ERROR = 6346807 constant
• field_validation.py: Uses bson_type_validator for exhaustive compactionTokens type rejection (16 BSON types), plus §19 namespace validation and missing field tests
• core_behavior.py: Parametrized CommandTestCase tests for non-encrypted collection rejection
• error_cases.py: Parametrized tests for unrecognized fields and collection variants (views, capped)
• edge_cases.py: Parametrized tests for collection name edge cases and compactionTokens content edge cases
• smoke test: Fixed to use assertFailureCode instead of checking error message content

What was tested

All 36 tests pass against MongoDB:

• BSON type exhaustiveness for compactionTokens field
• Wire-protocol namespace validation (§19 representative case)
• Non-encrypted collection rejection (core behavior)
• Collection type variants (view, capped)
• Unrecognized field rejection
• Collection name edge cases (system prefix, dots, dollar)
• CompactionTokens document content edge cases

[documentdb-triage-tool]

🤖 Auto-triaged by documentdb-triage-tool.

Applied: compatibility test, enhancement
Project fields suggested: Component test-coverage · Priority P2 · Effort L · Status Needs Review
Confidence: 0.88 (mixed)

Reasoning

component from path globs (test-coverage, test-framework); effort from diff stats (405+5 LOC, 10 files); LLM: Adds 36 new compatibility test cases for the compactStructuredEncryptionData command across multiple new test files, touching one component with no schema changes.

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