Python: Move SessionStore to core and persist Foundry Responses sessions (#7306)
* Python: Move session persistence into core
Move SessionStore and durable msgspec-backed storage into core, restore sessions in Foundry Responses hosting with per-user isolation, and document the serialization design.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Address session persistence review feedback
Harden scoped file paths and corruption recovery, preserve session serialization compatibility, clarify dependency placement, and add reproducible benchmark evidence.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Preserve session snapshot compatibility
Deep-copy in-memory session writes and retain existing Telegram session keys so stored conversations continue resolving.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Simplify Foundry session isolation
Add experimental FoundrySessionStore backed by Agent Server request context, remove resolver plumbing, and centralize v2 user isolation for sessions, checkpoints, and approvals.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Reduce Foundry session helper layering
Inline the single-use request user accessor while keeping separate context validation, fingerprint, and directory helpers for their distinct callers.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Clarify Foundry request context validation
Separate fail-fast request validation from context retrieval so Responses no longer appears to discard a returned context.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Python: Share Foundry request context helpers
Move protocol validation and user-scope derivation into a dedicated request-context module, leaving the session-store module focused on storage.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Restore Foundry checkpoint storage paths
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Simplify Foundry session storage paths
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Persist Foundry sessions under hosted home
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Make hosted path test platform independent
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Address session persistence review feedback
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Isolate Foundry session path handling
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Clarify Foundry session path terminology
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Align Foundry sessions with Responses continuity
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Finalize Foundry Responses session persistence
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Add session store feature usage telemetry
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
* Fix hosted per-call history persistence
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
---------
Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
Eduard van Valkenburg
28389df805