Four backoff formulas (ui-tui 1000/30s, desktop 300/15s jittered, web events
1000/30s, web PTY inline 250/3s cap 5 — untested) collapse into
apps/shared/src/reconnect-backoff.ts::reconnectBackoffDelayMs(attempt,
{baseDelayMs, capMs, jitter}). Every caller keeps its own parameters
(table in the PR body); the PTY ladder gains a test.
web/src/components/ChatSidebar.tsx hand-rolled a third WebSocket frame
dispatcher (`new WebSocket` + JSON.parse + `frame.method === "event"` switch
+ a private RpcEnvelope re-declaring shared JsonRpcFrame) for /api/events.
That socket now goes through EventsFeedClient, a notification-only subclass
of the shared JsonRpcGatewayClient (replay off, heartbeat off, connect
timeout covering ticket minting); the effect keeps only the retry ladder and
the banner. Both sidebar clients are now created once per component instead
of per `version` bump, so the shared client's seq watermarks survive a drop
and its `session.events.since` gap replay can actually fire for web
(previously the client was rebuilt on every reconnect and replay never ran).
Behavior change: web sidecar reconnects reuse the same JsonRpcGatewayClient
(gap replay now runs); the events feed's handshake `error`+`close` pair is one
`closed` transition (one retry timer, as before); no parameter of any
backoff ladder changed.
teknium1
bab5cece78