feat(stats): add activity buckets, WAU projection, and shared community stats

- Add a weekly vs monthly players chart to Pulse, counted over whole
  completed weeks (Mon-Sun) and calendar months instead of rolling windows.
- Add a Projection section below Pulse that estimates future weekly players
  three ways (flow, regression, seasonal) with a shaded likely range.
- Pull the public community stats into one shared component used by both the
  public page and the admin console, and show yesterday's verse on the
  public page.
- Show "Resurrected" instead of "Churned" in the segment mix chart, since
  churned only ever grows and flattens the rest.
- Make full-width charts fill their container and line the hover cursor up
  correctly; show 3 months of new players per day.
- Hide the verse mix lab for now.

todo.md

@@ -1,14 +1,18 @@
 # in progress
 
 (admin/stats)
-- [ ] WAU/MAU graph
-- [ ] new players per day should show 3 months
-- [ ] full width graphs need to have mouse tracking correctly
-- [ ] re: "segment mix over time": we need a counter for recently returning players
-	- [ ] (add clarification for past 30 days) maybe just remove "churned"
+- [x] WAU/MAU graph
+- [x] show full calendar weeks (ISO, Mon-Sun) / months, stopping at the last completed period
+- [x] new players per day should show 3 months
+- [x] full width graphs need to have mouse tracking correctly
+- [x] re: "segment mix over time": we need a counter for recently returning players
+	- [x] (add clarification for past 30 days) maybe just remove "churned"
+- [x] embed the community stats view at the top of the console (minus the verse)
+- [x] WAU projection section below Pulse (Flow / Regression / Seasonal, all-history fit, p10–p90 bands)
+- [x] hide the verse mix lab completely, for now
 
 (community stats)
-- [ ] show yesterday's verse in the community stats
+- [x] show yesterday's verse in the community stats
 - [ ] show human readable numbers in the community stats
 - [ ] fix the "last 30 days" github style view to be full-width