NFC tags: sticker filter, Erase, and rename writes the sticker

[mapgie]

What

Three related changes to NFC tag maintenance, one per commit.

1. Split chores by whether they are on a sticker. Settings > NFC tags gains a chip row over the Chores list: All · N, On a sticker · N, No sticker · N. Rows that are on a sticker say so in their subtitle. Every chore has a tag id in Supabase whether or not a sticker exists, so the only evidence the app has is its own: it wrote the id to a sticker, or it read the id off one. A sticker made elsewhere counts as soon as it is tapped once.

2. Erase a sticker. Erase beside Scan on the Identify card. Behind a confirm, the next tag held to the phone has its NDEF message replaced with an empty record, so a read finds nothing and it can be written for something else. The chore or tag-alarm it pointed at is untouched. The id it carried is read first and dropped from the sticker record. A never-formatted tag counts as already blank.

3. A renamed tag is written to its sticker on Save. Renaming changed what the memo answered to while the sticker kept the old name, so a tap matched nothing. Save on a renamed tag now reads "Save and write tag" and goes straight into the write dialog, with a note naming the old and new ids; the rename dialog warns up front.

How

• TagStickerStore (DataStore, on-device, never synced) maps tag id to the last time this phone met it on a sticker; MainActivity records every successful write and every id read off a tag, and forgets an erased one.
• NfcWriteRequest.Kind.ERASE, NfcHandler.eraseTag / currentTagId; WriteTagDialog gains erasing and note.
• TagsUiState gains stickers, choreFilter, filteredChoreTags and per-chip counts; tests in TagsUiStateTest pin the split and counts.

Changelog

tags-sticker-filter.json and erase-tag.json (minor), rename-rewrites-tag.json (patch).

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https://claude.ai/code/session_016rWgRBgBaGjrH7iWGmUeSv