Tag-alarms: friendly tag names, write before saving, and a Settings page for NFC tags

[mapgie]

What

Friendly tag ids. A tag-alarm's tag is no longer its record UUID. Name it from the Tag row ("Name the tag" folds whatever you type to lower-case letters, digits and hyphens, so "Office A" becomes "office-a" and the dialog shows exactly what will be written), or leave it blank and the write mints one from the title. Ids a chore or another tag-alarm owns are refused with the owner named.

Write before saving. Since the id no longer depends on the record, "Write "office-a" to a blank tag" is offered on the New sheet too. It saves the memo with that id as its linked tag, closes, and waits for the tap.

Settings > NFC tags. One page for tag maintenance:

• Identify: scan any tag and see what it belongs to ("Chore: Laundry", "Tag-alarm: Office A", or not linked).
• Chores: every chore's tag id, archived ones last, each with Write.
• Tag-alarms: every unarchived tag-alarm, with its tag id or "No tag yet"; Write (minting an unused id first when there is none) and Unlink (behind a confirm; the sticker itself is untouched).

How

• suggestTagId / freeTagId in TagAlarm.kt are pure and tested. ReminderRepository.setTagAlarmTag links or unlinks.
• NfcWriteRequest gains fromSettings; MainActivity exposes one onStartNfcWriteRequest and the nav graph derives the chore, memo and settings variants, so each tab shows only its own write dialog.
• TagsViewModel holds TagsUiState (pure, tested: listing, ordering, identify, free id) and follows the on-device memos so a link written from the sheet shows without a reload; chores load from Supabase and a failure leaves the tag-alarms showing.
• TagsSubScreen reuses SubScreenHeader, SettingsCard, ValueChip and WriteTagDialog. Identify uses the activity's capture mode, so a tap while listening is never logged as a chore or armed as an alarm.

Changelog

changelog/unreleased/friendly-tag-ids.json, minor bump.

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https://claude.ai/code/session_016rWgRBgBaGjrH7iWGmUeSv

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