fix(app): stop forcing CV1 onboarding on omi-enumerated non-CV1 devices

[mdmohsin7]

Problem

Connecting a Friend Dev Kit 1 force-showed the interactive device onboarding — the CV1 consumer-pendant button tutorial (transcription demo → single-press → power-cycle → double-tap config). That tutorial is meant only for the CV1 pendant.

Cause

DevKit boards (and Glass / Neo / Friend) share the omi BLE service UUID, so they all enumerate as DeviceType.omi. The onboarding gate in _checkDeviceOnboarding tried to skip DevKits via DeviceUtils.isOmiDevKit, but that helper only matched the substring DEVKIT (no space):

return value.toUpperCase().contains('DEVKIT');

The device advertises "Friend Dev Kit 1" → "FRIEND DEV KIT 1", which contains "DEV KIT" (spaced) but not "DEVKIT". So the skip didn't fire and the CV1 tutorial was shown. This contradicted the sibling helpers isOmiCv1 (excludes 'DEV KIT') and getDeviceImagePath, which already treat the same device as not a CV1.

Fix

1. lib/pages/home/page.dart — flip the gate from deny-listing DevKit to allow-listing CV1:

   if (!DeviceUtils.isOmiCv1(modelNumber: pairedModel, deviceName: device.name)) return;

   isOmiCv1's documented purpose is "scoping CV1-only UI like the button tutorial" — exactly this flow. Onboarding now fires only for a positively-identified CV1, and also correctly skips Glass / Neo / Friend.

2. lib/utils/device.dart — isOmiDevKit now also matches the spaced "DEV KIT" spelling. It's no longer called in lib/ after (1), but it's a public helper that carried the same space bug — this removes the latent trap and makes it consistent with its siblings.

3. test/utils/device_test.dart — regression tests for the spaced "Friend Dev Kit 1" form in both isOmiDevKit and isOmiCv1 groups.

Verification

• flutter test test/utils/device_test.dart → 22/22 pass, including isOmiCv1(deviceName: 'Friend Dev Kit 1') == false (the assertion that would have caught this bug).
• flutter analyze lib/pages/home/page.dart lib/utils/device.dart test/utils/device_test.dart → no new issues (remaining infos are pre-existing, far from the edited gate).

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