docs: refresh README for current main

[abdulsaheel]

Refreshes the README to match what is on main today (no unreleased features claimed).

Prepared for owner review; not merged.

🤖 Generated with Claude Code

Summary by Sourcery

Documentation:

• Update the README to accurately document current WHOOP MG ECG support and identify additional experimental sensor decoders and their limitations.

Summary by CodeRabbit

• Documentation
  • Updated the README to state that OpenStrap supports WHOOP MG (gen5), including MG ECG records.
  • Clarified that filtered and raw MG ECG records can be received live during readings.
  • Listed experimental decoders for other sensors, watches, and rings, noting they have not been verified against physical devices and are excluded from app metrics.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Refreshes README.md to accurately describe the current main-branch decoder coverage, including WHOOP MG ECG support and experimental device integrations, without claiming unreleased functionality.

File-Level Changes

Change	Details	Files
Update README device-support documentation to reflect currently implemented decoders and their maturity.	Add WHOOP MG/gen5 support, including ECG records, to the supported-device overview. Document the new Labrador ECG decoder and distinguish live-reading data from historical drains. List additional experimental single-device decoders while clarifying they are unverified and excluded from app metrics.	README.md

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 8ed5e657-2a4b-4e05-a41d-54abd604f4a0

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📥 Commits

Reviewing files that changed from the base of the PR and between ecb512b and 4090d08.

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📒 Files selected for processing (1)

• README.md

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Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The README now lists WHOOP MG (gen5), including MG ECG records. It also describes labrador.dart and clarifies the verification status and app-metrics exclusion of other single-device decoders.

Changes

Device documentation

Layer / File(s)	Summary
Document device coverage and decoders README.md	The README adds WHOOP MG (gen5) and MG ECG records to its device coverage. It lists labrador.dart for filtered and raw MG ECG records received live during a reading. It describes other single-device decoders as experimental, unverified against physical devices, and excluded from app metrics.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~4 minutes

Change: Other

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Merge Risk: ⚪ Minimal · up to 4090d

No actionable issue is established for this documentation update. The app’s metric exclusion claim remains unconfirmed.

Pre-merge checks | 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the README documentation update. It matches the main change in the pull request.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

Sourcery assessment

Approved.

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