Housing Decor Guide

* Mogul tab -- Supply Impact: three-way mode toggle (Off / Smooth / Cap)
  controlling how the planner accounts for market saturation when the
  same recipe stacks. Off keeps the original "stack the highest-margin
  recipe" behaviour. Smooth applies a per-unit decay so each successive
  craft of the same recipe is worth less in the ranking, diversifying
  the plan on its own (default 7%). Cap is a hard ceiling per recipe;
  freed lumber redistributes to runners-up (default 10). Each mode has
  an inline editable value; changes apply 0.5s after typing settles, or
  immediately on Enter. Cap is implemented as a per-recipe upper-bound
  constraint in both the greedy and LP planners. Smooth's per-unit
  decay is non-linear so the LP planner falls back to greedy in that
  mode (LP button greys out with an explanatory tooltip line).

* Mogul tab -- House tab Velocity widget: counts only Learned entries
  from acquisition history. Previously a 65-craft Banded Barrel session
  read as 65 collection events when the collection only grew by 1.
  The number now reflects actual collection growth and House XP rate.

* Mogul tab -- layout: BEST PLAN heading replaced with the Supply
  Impact selector. Revenue and Net profit now share one line, anchored
  just above the column header strip. Crafts and lumber-used moved
  into the Plan section header line ("Plan -- N crafts, M lumber
  used"). Hairline divider under the toolbar separates controls from
  data. Cap-limited indicator appears on the lumber summary when a cap
  binds and lumber would otherwise go unspent.

* Mogul tab -- mats panel header: "MATS TO BUY" renamed to "Reagents
  to buy for complete plan". Selecting a single recipe row updates
  the header to "Reagents to buy for <recipe name>".

* Mogul tab -- "I'll buy mats from AH" checkbox replaced with a pill
  toggle matching the rest of the toolbar. "Planner:" label prefixes
  the Greedy/LP pair so the row reads as a single labelled group.
  Both hide in Collection mode (where they don't apply).

* Mogul tab -- Collection mode replaces the Supply Impact row with a
  title-styled "Best use of lumber for uncollected, crafted decor."

* Mogul tab -- icon swapped to Mobile-TreasureIcon (saturated when
  active, desaturated when not).

* Acquire tab -- "Group by zone" toggle removed; alphabetical sort is
  the only mode.