Consolidate subscription usage policy enforcement, privacy-safe persistence, and gateway security hardening into one reviewable change.
Includes bounded HTTP and execution envelopes, header and protocol guards, DNS and relay validation, authentication and secret projection hardening, secure backup/install paths, and regression coverage.
Retry pre-response transport failures across candidates with an explicit stop policy, and propagate end-to-end timing into usage records and UI diagnostics.
Remove legacy body, import, cookie, PII, and tunnel replay caps while preserving optional operator-configured gateway limits.
- extract provider reasoning effort from request body metadata
- extract priority service tier and expose it as service_tier
- show reasoning level and fast badges after model names
- include badges in active request updates and usage list payloads
- add targeted backend and frontend coverage
The "upstream_is_stream" JSON key flows from the AI execution report
context producer (aether-ai-serving::report_context) through several
consumers — usage runtime metadata copy/move, gateway watchdog, sync
execution decision, observability handlers, and the per-driver usage
repositories. Each site spelled the key as a bare string literal, so a
producer-side rename would silently degrade every consumer to its
fallback (typically assuming streaming) with no compile-time signal.
Introduce a single pub const UPSTREAM_IS_STREAM_KEY in
aether-ai-formats (the lowest crate every consumer already depends on),
re-export from the crate root, and route producer + all map-style
consumers through it. The change is purely a string-literal → constant
swap; behaviour is identical.
Sites left as literals (intentional):
- `json!({"upstream_is_stream": ...})` macro keys, which must be string
literals at the macro layer; these are also API-response payload
field names (an external contract that should not silently track
internal report-context renames).
- SQL column accessors (`try_get::<...>("upstream_is_stream")`), which
refer to the database schema column, not the JSON key.
- Test fixtures and assertions, which validate the on-the-wire contract
and should keep verifying the actual string.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
elky