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Cherry-pick #37695 to v1.4-branch

#37713

Merged

…oading (#37695)

• Refactor mock server to support distributed configuration loading

Refactors the mock server implementation to support loading configuration from multiple JSON files, enabling flexible mocking of different services during Matter device commissioning validation.

Key Changes:

• Restructured configuration loading to support directory-based routing configs
• Added dataclass-based type safety for configuration and route definitions
• Updated path handling to use pathlib.Path for better cross-platform support
• Modified server launch configuration to support routing config directory
• Added configurations for mocking multiple services:
  • Distributed Compliance Ledger (DCL)
  • Product Terms & Conditions server

Technical Improvements:

• Introduced strongly typed Route and Configuration classes
• Simplified route matching logic with dedicated matcher
• Improved error handling for configuration loading
• Updated unit tests to support new configuration structure

The changes enable quick iteration of mock service responses during preproduction testing and PlugFest validation, particularly for testing new commissioning flows that rely on DCL-based configuration with indirect product server references.

Test Configuration:

• Added example configurations for VID:65521/65522, PID:32769
• Updated TC URL endpoints to use port 44538
• Included sample Terms & Conditions responses

• server: Add validation checks for SSL certificate and key files

Add input validation to verify that SSL certificate and key files exist and are regular files before attempting to create the SSL context. This provides clearer error messages to users when certificate files are missing or invalid, following the same validation pattern used for config files.

Testing

Tested on origin/master

Review changes with  

Changed Files

File	Status
.vscode/launch.json	13% smaller
.github/.wordlist.txt	Unsupported file format
examples/chip-tool/commands/dcl/test_dcl_server.py	0% smaller
integrations/mock_server/README.md	Unsupported file format
integrations/mock_server/configurations/fake_distributed_compliance_ledger/dcl-model-models-65521-32769.json	0% smaller
integrations/mock_server/configurations/fake_distributed_compliance_ledger/dcl-model-models-65521-32785.json	0% smaller
integrations/mock_server/configurations/fake_distributed_compliance_ledger/dcl-model-models-65521-32786.json	0% smaller
integrations/mock_server/configurations/fake_distributed_compliance_ledger/dcl-model-models-65522-32769.json	0% smaller
integrations/mock_server/configurations/fake_product_server/terms-and-conditions-65521-32769-v1.json	0% smaller
integrations/mock_server/configurations/fake_product_server/terms-and-conditions-65521-32785-v1.json	0% smaller
integrations/mock_server/configurations/fake_product_server/terms-and-conditions-65521-32786-v1.json	0% smaller
integrations/mock_server/configurations/fake_product_server/terms-and-conditions-65522-32769-v1.json	0% smaller
integrations/mock_server/configurations/server_config.json	0% smaller
integrations/mock_server/configurations/unittest/config.json	0% smaller
integrations/mock_server/src/__init__.py	0% smaller
integrations/mock_server/src/handler.py	0% smaller
integrations/mock_server/src/main.py	0% smaller
integrations/mock_server/src/route_configuration.py	0% smaller
integrations/mock_server/src/router.py	0% smaller
integrations/mock_server/src/server.py	0% smaller
integrations/mock_server/tests/__init__.py	0% smaller
integrations/mock_server/tests/test_mock_server.py	0% smaller