Add YAML settings

[AndreuCodina]

No description provided.

[coveralls]

coverage: 99.461% (+0.001%) from 99.46% — feature/add-yaml-settings into main

[Copilot]

Pull request overview

This PR introduces YAML-based settings files into Wirio’s settings system, updating defaults, documentation, and tests accordingly, and extracting the JSON “flattening” parser into an internal module reused by the YAML provider.

Changes:

• Add YamlSettingsProvider / YamlSettingsSource and make YAML files the default settings file format (settings.yaml, settings.{environment}.yaml).
• Extract the settings-file “flattening” logic into wirio.settings._json._json_settings_file_parser.
• Update tests and documentation to reflect YAML usage and add PyYAML as a dependency.

Reviewed changes

Copilot reviewed 9 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
uv.lock	Adds pyyaml to the locked dependency set.
pyproject.toml	Adds PyYAML as a runtime dependency.
src/wirio/settings/settings_manager.py	Switches default providers and public API toward YAML (add_yaml_file, add_default_providers).
src/wirio/settings/yaml/yaml_settings_provider.py	Implements YAML file loading via yaml.safe_load and flattens values into settings keys.
src/wirio/settings/yaml/yaml_settings_source.py	Builds a YAML settings provider for the manager.
src/wirio/settings/_json/_json_settings_file_parser.py	New internal parser that flattens nested structures into :-delimited keys.
src/wirio/settings/_json/init.py	Adds internal package marker for the JSON parser.
src/wirio/settings/aws_secrets_manager/aws_secrets_manager_settings_provider.py	Updates import to use the new internal JSON parser module.
tests/settings/yaml/test_yaml_settings_provider.py	Replaces JSON provider tests with YAML provider tests and adds empty-file behavior.
tests/settings/yaml/init.py	Adds test package marker for YAML settings tests.
tests/settings/test_settings_manager.py	Updates default-provider expectations from JSON to YAML and adjusts method name patching.
tests/settings/json/test_json_settings_file_parser.py	Updates test import path to the extracted internal JSON parser.
docs/pages/core-concepts/settings.md	Updates docs to describe YAML defaults and YAML examples.

Comments suppressed due to low confidence (1)

tests/settings/yaml/test_yaml_settings_provider.py:136

• notes_2 is added to the model and included in the YAML input, but the test never asserts the parsed value. Adding an assertion here would ensure null/empty YAML scalars are handled as expected for optional fields.

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