980 feature more detailed connecting modal

[Turnlings]

Stream the param currently being fetched to the frontend using the current callback style architecture. (And show it when connecting)

[Copilot]

Pull request overview

Adds a backend→frontend socket event to surface the specific parameter currently being fetched, and displays it in the GCS connection progress modal to provide more detailed connection feedback.

Changes:

• Add a new backend callback (fetchingParameterCb) that emits fetching_param over Socket.IO with the current parameter name.
• Thread the callback through drone construction/reboot paths and invoke it when fetching single parameters.
• Add Redux state + socket listener + UI rendering to show the currently fetched parameter while connecting.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
radio/app/utils.py	Adds fetchingParameterCb Socket.IO emitter for the currently fetched param.
radio/app/endpoints/comPorts.py	Passes fetchingParameterCb into Drone construction during connect.
radio/app/endpoints/autopilot.py	Preserves and reuses fetchingParameterCb across autopilot reboot reconnect attempts.
radio/app/drone.py	Stores the optional fetchingParameterCb callback on the Drone instance.
radio/app/controllers/paramsController.py	Emits “currently fetching param” before param_request_read_send in getSingleParam.
gcs/src/redux/slices/paramsSlice.js	Adds fetchingParam state + reducer + selector.
gcs/src/redux/middleware/socketMiddleware.js	Listens for fetching_param socket event and dispatches setFetchingParam.
gcs/src/components/connectionProgress.jsx	Displays “Fetching {param}” beneath the connection status message.

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

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[1Blademaster]

As said on Discord I'm also not a fan of all this callback-hell, hopefully we can plan and refactor this in the future.