* fix(server): bound shell tool output in timelines
Provider tool output could enter timeline persistence and live streams without a size limit. Bound canonical shell output before coalescing, storage, history hydration, and dispatch so every provider follows the same 64 KiB budget.
* refactor(server): slice oversized tool output directly
* fix(server): cover imported and failed shell output
* fix(client): wait longer for session responses
* fix(client): default RPC waits to sixty seconds
* fix(app): preserve detached stream scroll on delayed history
Code drift: longer client RPC waits let delayed timeline responses arrive after a user scroll-away, so web stream anchoring must not reattach on transient scroll-top resets.
Restore the 15s connect deadline and leave app initialization slack above the default 60s session RPC wait.
* fix(client): keep helper waits within caller deadlines
Review fix: the 60s default session RPC wait leaked into wait previews and waitForAgentUpsert helper fetches. Bound those helper RPCs to the caller deadline or a short best-effort preview timeout, and allow small scroll ranges to reattach at bottom.
* fix(client): respect caller timeout budgets
* fix(cli): keep diagnostic probes responsive
* Refactor daemon client request options
* Preserve daemon client legacy overloads
