Add OpenShock application

[hhvrc]

Application Submission

OpenShock - Control OpenShock-compatible 433 MHz shock collars via the Flipper Zero's Sub-GHz radio.

Features:

• Transmit shock, vibrate, sound, and light commands over OOK-modulated 433.92 MHz
• Support for 5 shocker models: CaiXianlin, Petrainer, Petrainer998DR, T330, D80
• Receive and decode shocker commands from the air
• Save/load up to 32 shocker configurations to SD card
• Adjustable intensity, channel, and command type per shocker model

Extra Requirements

• Requires a compatible 433 MHz OOK shock collar (CaiXianlin, Petrainer, Petrainer998DR, T330, or D80)
• No extra software required; uses the Flipper Zero's built-in CC1101 Sub-GHz radio

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