Add a narrow `agent: { streamFn: StreamFn }` field to the PiAgentSession
interface, sourced structurally from the real AgentSession.agent (Agent,
from the stable @earendil-works/pi-agent-core package). This is the
resolved-auth/headers/retry "call this model" function pi's own
compaction/branch-summarization code uses internally, and will let
sessionNameGenerator.ts drop its dependency on the deprecated pi-ai
/compat provider registry in a follow-up leg.
No adapter object was needed: AgentSession's real .agent field already
structurally satisfies the new narrow shape, so defaultCreateAgentRuntime
needed no changes.
Adds a unit test proving the field is wired end-to-end via the injected
runtime creator. sessionNameGenerator.ts itself is untouched (leg C).
Raises the minimum supported Pi version from 0.78 to 0.80. Required
for the upcoming removal of pi-web's dependency on pi-ai's deprecated
compat entrypoint (@earendil-works/pi-ai/compat).
Coalesce session status/activity updates into one render per animation
frame instead of one per token, ignore prompt-editor status changes that
do not affect what it displays, and stop per-keystroke draft state from
re-rendering the surrounding template. This prevents streaming-driven
re-renders from interrupting in-progress touch gestures such as the iOS
long-press paste/edit callout.
The doctor "can find npm/pi" checks wrap the version command in a POSIX
subshell, `(cmd --version 2>&1 || true)`. Fish treats `( ... )` as command
substitution syntax and forbids it in command position, so every fish user saw
false-negative failures:
fish: command substitutions not allowed in command position
command -v npm && (npm --version 2>&1 || true)
Branch on the detected service shell and emit fish's `begin; ...; end`
grouping for fish, mirroring the existing fish-aware quoting in
serviceShellQuote. Bash and zsh keep the POSIX subshell.
Also guard the `main()` invocation with an ESM main-module check so the CLI
helpers can be imported by tests without side effects, and add a regression
test covering the bash, zsh, and fish command shapes.
