[dzid26]

Summary

Follows #148 and #149 (the BleRecord envelope). Owner direction, 2026-10-08: "We should log connection state as well. Could be added to the envelope, together with RSSI?" No tracking issue.

• RSSI on every record. BleRecord.rssi (5, optional sint32, in dBm) is the phone's latest RSSI for the car when the record was acquired, absent when unknown. The controller passes the value it already holds for the car (latestRssi(address)) into each HistoryStore call: status, charge, drive and connection.
• Connection events. New payload connection_event (6, first in the oneof): ConnectionEvent.State CONNECTED when a connection becomes ready (where firstStatusAfterConnect resets) and DISCONNECTED when a connection that had become ready ends. They go to <vehicleId>.connection.pblog through VehicleLogs; acquired_at is the event time and rssi the last RSSI before it. A connection attempt that never became ready logs nothing, so a car out of range does not spam the log. Log only: no read model or UI.
• Held-back status flush removed. StatusLogGate, its test and HistoryStore.onLinkLost are gone: DISCONNECTED marks when watching ended, and the last logged status holds until then. shouldLogStatus is unchanged; HistoryStore keeps a plain last-logged map, seeded on load as before.
• ADR-0008, PRIVACY.md and the master plan are updated.

Review notes:

• DISCONNECTED is also written when the app itself closes a ready connection (tracking switched off, a car that moved to a new address), which is why it is not called "lost". A killed app writes nothing, so a CONNECTED after a CONNECTED means an unclean end.
• On connect the RSSI can be the advert's or the previous connection's last reading, since the controller polls it every 10 s. The ADR says so.
• VehicleLink sits 2 lines under detekt's LargeClass cap (700), so the helpers (latestRssi, recordConnection) live next to updateConnection, and the recordStatus call stays compact.
• HistoryStore reads the connection files on load only to refresh the record counts its 20k cap trims by; without it the cap would not hold across restarts.
• The "newer payload kind" test used field 5, which rssi now owns; it uses field 7.
• Names follow the owner's renames of 2026-10-08 (rssi_dbm to rssi, link to connection, LOST to DISCONNECTED). Field numbers and types are unchanged, and a unit test pins the wire tags.

Type

• Bug fix
• Feature
• Protocol / crypto change
• Docs / CI / tooling
• Refactor (no behavior change)

Testing

• ./gradlew :core:test (174 tests)
• ./gradlew :app:testDebugUnitTest
• ./gradlew :app:lintDebug
• Real car: not done. The connection file should gain a record on each connect and each disconnect.

Also green: :app:assembleDebug, ktlintCheck, detekt (one run of the full command on the final commit).

New core tests in BleRecordMappingTest: the wire tags for fields 5 and 6 plus the ConnectionEvent state numbers; a ProtoLog round trip with connection events and rssi; a record without rssi reads it as absent (and 0 dBm stays 0).

HistoryStore and the controller wiring have no unit tests (they need an Android Context). I drove HistoryStore with a throwaway JVM harness, not committed, run on the final code: connection and status records land in the right files with the right RSSI, the status policy holds across a restart, and the 20k cap holds across restarts (that test fails without the load-time count refresh). The controller change is read-reviewed only; there is no emulator or car here.

Checklist

• Protocol changes ship test vectors; expected.txt regenerated, not hand-edited (n/a: our own log envelope, not Tesla's protocol; a unit test pins the wire tags)
• No VINs, keys, or decrypted payloads in logs
• Docs/master-plan updated where relevant
• New source files carry SPDX-License-Identifier: AGPL-3.0-only (no new source files)

🤖 Generated with Claude Code

https://claude.ai/code/session_0129RzhbEE2cboMcYyZMuxqX

[github-actions]

Screenshots

Captured from the demo build at a8b5abb.

Debug APK: zip from Android CI (GitHub sign-in needed)

[github-actions]

Screenshots

Captured from the demo build at efacbeb.

Debug APK: zip from Android CI (GitHub sign-in needed)