add ble connection status query && clear session when device is locked

[lihuanhuan]

Summary by CodeRabbit

• New Features

  • Automatic session clearing during lock/unlock to enhance device security and consistency.
  • Improved Bluetooth handling: initializes BLE connection status automatically for more reliable connectivity.

• Bug Fixes

  • Fixed rare inconsistencies where session state could persist after locking/unlocking.
  • Prevented unnecessary session-related prompts in certain USB and button-interaction scenarios.

[coderabbitai]

Walkthrough

Adds a Python API se_thd89.clear_session() and wires it into device lock/unlock flows. Replaces prior passphrase cache session-ending logic with secure element session clearing in base and UART paths. Adds a BLE connected-state probe in UART when status is unknown. No public function signatures changed.

Changes

Cohort / File(s)	Change Summary
SE session API exposure core/embed/extmod/modtrezorcrypto/modtrezorcrypto-se-thd89.h	Introduces clear_session() Python binding for THD89 secure element, mapping to se_sessionClear(). Adds object and globals table entry.
Lock flow update core/src/apps/base.py	Calls se_thd89.clear_session() at start of lock_device() when initialized and PIN-protected. Removes passphrase cache end_current_session() path.
UART handling and BLE probe core/src/trezor/uart.py	Replaces passphrase cache session-ending with se_thd89.clear_session() in handle_usb_state and _deal_button_press. Adds BLE status request when utils.BLE_CONNECTED is None in fetch_ble_info().

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

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📥 Commits

Reviewing files that changed from the base of the PR and between 9f23c6d and 5c12860.

⛔ Files ignored due to path filters (1)

• core/mocks/generated/trezorcrypto/se_thd89.pyi is excluded by !**/generated/**

📒 Files selected for processing (3)

• core/embed/extmod/modtrezorcrypto/modtrezorcrypto-se-thd89.h (2 hunks)
• core/src/apps/base.py (1 hunks)
• core/src/trezor/uart.py (3 hunks)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (3)

• GitHub Check: Defs check
• GitHub Check: Gen check
• GitHub Check: Style check

🔇 Additional comments (6)

core/src/apps/base.py (1)

554-555: No issue

core/embed/extmod/modtrezorcrypto/modtrezorcrypto-se-thd89.h (2)

138-148: No issue

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1163-1165: No issue

core/src/trezor/uart.py (3)

213-216: Uncaught errors from clear_session could break loop

Confirm clear_session never raises here. If it can, this loop may clear and drop state.

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366-369: Same risk on button short-press path

Confirm clear_session is safe and non-raising on all devices.

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628-630: BLE protocol compatibility

New ctrl 0x81/0x05. Verify it’s supported on all target BLE firmwares.

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[revan-zhang]

🎉 Snyk checks have passed. No issues have been found so far.

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