Adds a Window::All option to the per-agent stats page and the hive-wide
rollup, selectable as a new 'all' tab on both.
- hive-ag3nt (per-agent, time-bucketed): All ranges from MIN(started_at)
to now (fallback to now on an empty table) with an adaptive bucket
width laddered by span — hourly <=2d, daily <=90d, weekly <=2y, 30-day
beyond — so the trend series stays bounded (~<=104 buckets) at any age.
- hive-c0re (swarm rollup, not time-bucketed): All sets from=0 so the
aggregate covers every recorded turn across all agents.
- frontend: an 'all' button on both the agent stats and dashboard hive
stats window selectors (createTabStrip + fetch already pass the window
string through, so no JS change needed).
cargo check passes on both crates; FE builds clean. Fixes#1919.
684c85686e