Remove Play Store support for bad-reviewed tablet models

[regenesis-claw]

Issue Description

Remove official support for tablet models on Android that have a pattern of poor Play Store reviews (crashes, performance issues, unusable UI, etc.), to protect the app's overall Play Store rating and reduce support burden from devices we can't realistically optimize for.

Related Context

• [Bug] Blue glitch line appearing on screen (Lenovo Yoga+ tablet) #1865 — Blue glitch line appearing on screen (Lenovo Yoga+ tablet) — example of a tablet-specific bug affecting reviews
• Review devices min spec on iOS / Play Store #1308 — Review devices min spec on iOS / Play Store (closed) — prior work defining minimum device specs
• Design and implement 'Below Minspec' modal for devices below iPhone 13/SE 2023 #1801 — Design and implement 'Below Minspec' modal for devices below iPhone 13/SE 2023 (closed) — precedent for gating unsupported devices with a UX flow rather than a hard block

Proposed Approach

1. Pull Play Store review data (ratings + device model, if available via Play Console) to identify tablet models with disproportionately negative reviews.
2. Cross-reference with crash/performance telemetry (Sentry, Metabase) for those models.
3. Decide on enforcement mechanism: Play Store device exclusion list (via <compatible-screens> / <supports-screens> in the manifest, or Play Console's device catalog exclusion) vs. in-app "unsupported device" modal (reusing the below-minspec pattern from Design and implement 'Below Minspec' modal for devices below iPhone 13/SE 2023 #1801).
4. Document the excluded model list and rationale.

Acceptance Criteria

• List of bad-reviewed tablet models identified from Play Store data
• Decision made on exclusion mechanism (store-level vs in-app gating)
• Excluded models no longer able to install/run the app from Play Store (or are gated with a clear unsupported-device message)
• Documented list of excluded models + reasoning

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Requested by Rodri via Slack