[diffwireauto]

Epic C of Feature #647 (plan of record: docs/initiatives/standalone/647-mesh500-presets/PLAN.md). Epic: #733. Stacked on Epic B (#744): the base is feat/726-preset-catalog, so this diff shows only Epic C. It retargets to dev once #744 merges.

What this changes

Remote nodes (repeaters, room servers, sensors) can apply the same presets through the stock admin CLI.

Task	Commit	What
#734	a8ef70e	The preset picker on the repeater / room server radio card fills frequency, bandwidth, SF and CR. TX power is untouched (a separate command on these nodes).
#662	5a6306c	"Apply temporarily" sends tempradio f,bw,sf,cr,minutes instead of set radio. Default 1440 minutes, allowed 1 to 35791 (firmware's 32-bit revert timer overflows beyond that). It's sent after every other command, because the node retunes 2 s after replying. CR goes out as the 4/x denominator.
#735	4f465b9	A preset's path hash sets set path.hash.mode (zero-based). On a temporary save it is held back and stays pending, since firmware has no temporary path hash and it would outlive the revert; a note says so on screen. This is a default I chose; the owner can reverse it.
#745	ba6f946	Manage Sensor: sensors open the repeater login and admin hub. Stock SensorMesh handles the same login and CLI over the mesh.

Verification (C4, #736)

CI-equivalent gates, run at ba6f9462:

• check_no_emdash.py: OK.
• flutter analyze --fatal-infos --fatal-warnings: no issues.
• dart format --set-exit-if-changed: 0 files changed.
• flutter test: 1040 passed (1 skip predates this work).
• Builds: Windows release, and a release-signed APK.

test/helpers/remote_radio_commands_test.dart pins:

• the set radio / tempradio strings;
• the duration bounds, including the overflow arithmetic;
• that tempradio goes last;
• the path hash conversion and the hold-back rule;
• preset matching against repeater-reported frequencies.

The live OK - temp params for N mins reply and the revert are checked on a real repeater at D1 (#738).

Pre-PR Gemini review

scripts/llm-consult.py --backend gemini --model gemini-2.5-pro. Audit log ~/.claude/llm-consultations/meshcore-open/2026-10-01-gemini-epicC-prompt-gemini-gemini-2.5-pro.log. Cost $0.0138, plus one earlier call that failed with no response parts and wrote no audit log (its cost is unknown).

#	Finding	Disposition
1	Reset "path hash came from a preset" when the user edits radio values, so a later temporary save sends it	Rejected. The hold-back exists because a permanent path hash change outlives the tempradio revert, which is just as true after a frequency tweak. Only a deliberate edit to the path hash itself shows the user wants it applied, and that edit already clears the flag.
2	The duration's helper text "1 to 35791 minutes" looks like a constant error	Rejected. helperText renders in the normal hint style; error styling is errorText, which isn't used. A range hint is useful before the user hits a bad value.

Agent: MagentaHawk (session 5a8922d6)

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