Write a radio's settings on their own, from every place, on every radio

[ww8l]

Consistency pass: any radio that can program settings separately from channels now offers it in the same places — the Program dialog and the radio profile page.

Program dialog

• The generic dialog gets the AnyTone's Channel set | Profile cards whenever the driver writes settings on its own: MD-380, TH-D72, TM-D710, BT-9000, and now UV-5R and ID-5100. Profile writes the saved profile's settings, channels untouched, with the same guard as the profile page (never saved / nothing set).
• A stale settings result is cleared by any other action.

UV-5R and ID-5100: settings-only writes

• UV-5R sends only the 16-byte blocks that changed (changed_runs), never the channel block.
• ID-5100 runs the factory-reset guard (check_image) before cloning, and shows its press-POWER instruction in the dialog and on the profile page.
• Both share their upload-and-verify with the codeplug program.

Profile page

• Write to radio on every cable radio with a writer — the AnyTone and TD-H3 were hidden by a generic-dialog-only gate. For the AnyTone it now says the radio reboots to commit and points at Verify, and rescans ports.
• Card radios (FT5D, ID-52, TH-D75): Write settings to card — the profile's settings patched into the radio's own file, memories untouched. New CardSettingsWriter capability + write_card_settings command, following each format's export file rules (now shared per format).
• One profileWriteBlocked guard for every settings-write affordance.

Verification

• Real card files on Tim's Mac (radios/card_settings_write.rs, ignored in CI): a file's own settings written back change 0 bytes; one flipped setting changes 1 byte; the FT5D checksum validates; the TH-D75 writes a new file and never touches the radio's save. The card formats' own export tests re-run after the refactor.
• /code-review (8 findings, all fixed) and /security-review (no findings).
• Not run on a radio: the UV-5R and ID-5100 settings-only writes, and a radio loading a settings-only card file (Tim's call). No UI click-through yet.

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