Add rs41 tracker

[yeckel]

Application Submission

RS41 Tracker decodes Vaisala RS41 radiosondes using the Flipper Zero's built-in CC1101 radio (or an external CC1101 module connected via SPI).

Features:

• Scans 400–406 MHz for active sondes
• Decodes sonde ID, GPS position, altitude, temperature
• Reed-Solomon error correction
• External CC1101 module support (toggle with LEFT key)
• Signal quality history indicator (last 10 packets)
• Pin wiring help screen (long-press LEFT)

Extra Requirements

Works standalone with the Flipper Zero's internal Sub-GHz radio. Optionally supports an external CC1101 module connected via the GPIO header (SPI) — wiring shown in the built-in help screen (long-press LEFT in the app).

Author Checklist (Fill this out)

• I've read the contribution guidelines and my PR follows them
• I own the code I'm submitting or have code owner's permission to submit it
• I have validated the manifest file(s) with python3 tools/bundle.py --nolint applications/CATEGORY/APPID/manifest.yml bundle.zip

Reviewer Checklist (Don't fill this out)

• Bundle is valid
• There are no obvious issues with the source code
• I've ran this application and verified its functionality

[Copilot]

Pull request overview

Adds a new RS41 Tracker entry to the Apps Catalog (Sub-GHz category), pointing the catalog to the app’s external Git repository and providing basic metadata.

Changes:

• Added manifest.yml for rs41_tracker with source repo location, description/changelog includes, and screenshot paths.
• Added four PNG screenshot files under the catalog app directory.

Reviewed changes

Copilot reviewed 1 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
applications/Sub-GHz/rs41_tracker/manifest.yml	Introduces the new app catalog manifest referencing the external source repo and metadata files.
applications/Sub-GHz/rs41_tracker/screenshots/ss0.png	Adds screenshot asset file (currently stored in catalog repo).
applications/Sub-GHz/rs41_tracker/screenshots/ss1.png	Adds screenshot asset file (currently stored in catalog repo).
applications/Sub-GHz/rs41_tracker/screenshots/ss2.png	Adds screenshot asset file (currently stored in catalog repo).
applications/Sub-GHz/rs41_tracker/screenshots/ss3.png	Adds screenshot asset file (currently stored in catalog repo).

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[xMasterX]

Hello, screenshots should be placed in app's repo, not the catalog
After adding them to your repo please add their paths in manifest as you can find in other apps or in docs (also in this repo in files) for example

And update commit sha in manifest after applying fix

[yeckel]

Hello, screenshots should be placed in app's repo, not the catalog After adding them to your repo please add their paths in manifest as you can find in other apps or in docs (also in this repo in files) for example

And update commit sha in manifest after applying fix

The screenshots were already in the original project repository, so the paths and hash are the same. I just removed them from here.