…trol backoff

Merge upstream/main (3 commits):
- fix(streaming): adaptive backoff + cursor strip to prevent message truncation (NousResearch#7683)
  Telegram flood control during streaming caused messages to be cut off.
  New: adaptive backoff (double interval on flood, cap at 10s), cursor strip
  on fallback entry, retry on fallback send, default edit_interval 1.0s.
- fix: unify openai-codex model list from codex_models.py (NousResearch#7844)
- fix(matrix): pass required args to MemoryCryptoStore for mautrix >=0.21 (NousResearch#7848)

Add 33 tests for the new streaming flood control behavior:
- TestIsFloodError (7): flood/retry/rate detection, false positives
- TestSendOrEditReturnValues (9): bool return values for all scenarios
- TestAdaptiveBackoffDirect (6): progressive backoff, strike tracking, reset
- TestTryStripCursor (4): cursor cleanup on fallback entry
- TestFallbackFinalRetry (1): retry on flood during fallback send
- TestDefaultEditInterval (3): config defaults
- TestFloodStrrikesState (3): initialization state

Self-improve: automated improvement

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 1850747) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 092359d) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 092359d) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 1850747) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 2584709) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit 1850747) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>

NousResearch#7848)

* fix(matrix): pass required args to MemoryCryptoStore for mautrix ≥0.21

MemoryCryptoStore.__init__() now requires account_id and pickle_key
positional arguments as of mautrix 0.21. The migration from matrix-nio
(commit a9a629d) didn't account for this, causing E2EE initialization
to fail with:

  MemoryCryptoStore.__init__() missing 2 required positional arguments:
  'account_id' and 'pickle_key'

Pass self._user_id as account_id and derive pickle_key from the same
user_id:device_id pair already used for the on-disk HMAC signature.

Update the test stub to accept the new parameters.

Fixes NousResearch#7803

* fix: use consistent fallback for pickle_key derivation

Address review: _pickle_key now uses _acct_id (which has the 'hermes'
fallback) instead of raw self._user_id, so both values stay consistent
when user_id is empty.

---------

Co-authored-by: Hermes Agent <hermes@nousresearch.com>