Feat: wire first modernized feature to platforms providers

[gcharest]

Summary | Résumé

This pull request refactors how the SRE module's geolocation functionality is integrated and registered, moving away from a legacy command provider approach to a more unified, platform-agnostic command registration system. It also enhances the geolocation Slack output and improves platform provider initialization. The main changes are grouped below:

SRE Geolocation Command Refactoring

• Removed the legacy GeolocateProvider class and its direct registration as a Slack subcommand, along with its helper module and related unit/integration tests. This eliminates the old, Slack-specific way of handling the /sre geolocate command and its associated test coverage. [1] [2] [3] [4] [5] [6]
• Introduced a platform-agnostic command registration mechanism in modules/sre/__init__.py, using hooks to register commands for Slack, Teams, and Discord.

Command Dispatching and Routing

• Added a _dispatch_platform_command function to the SRE module, which dynamically dispatches subcommands to the appropriate platform provider, improving extensibility and decoupling command handling from Slack-specific logic. The main /sre command handler now uses this dispatcher before falling back to the legacy router. [1] [2]

Platform Provider Initialization

• Enhanced the server's lifespan startup to initialize all enabled platform providers, handle partial failures gracefully, and register platform commands for Slack, Teams, and Discord using a discovery function. [1] [2]

Geolocation Slack Output Improvement

• Improved the formatting of geolocation results in Slack: country code and postal code fields are now included, and a fallback message is shown if no location data is available. [1] [2]

Minor Improvements

• Minor import order fix in the Slack provider integration file for consistency.

These changes modernize the SRE module's command handling, improve maintainability, and enhance the user experience for geolocation commands across multiple platforms.