Mercantile - Villager Overhaul

This beta brings Mercantile's biggest update yet — villager moods, market days, memorials, delivery contracts, work orders, and a new tutorial tree to guide you through all of it.

Added

• Villager society — villagers now have moods shaped by their living conditions (bed quality, lighting, crowding); villages hold periodic market days with bonus restocks and discounts; villagers grieve and erect memorials when a neighbor dies (and briefly raise prices out of fear); Honored players occasionally receive gratitude gifts.
• Trade management — pin any offer in the merchant screen to track it and receive a notification when it restocks; pinned trades are also listed in the reputation detail panel.
• Villager management — assign unemployed villagers to a profession directly with work orders, coax nitwits into taking on real jobs, and feed baby villagers to speed up their growth.
• Delivery contracts — accept jobs from villagers to deliver goods and earn emeralds and reputation in return.
• Tutorial and onboarding — a new advancement tree walks you through Mercantile's systems; items tied to mod mechanics now carry contextual tooltip hints; reputation tier changes are announced in-game as they happen.
• Expanded content — librarians now sell Meridian salvage tomes and rolled books; recipe viewers (EMI, REI, JEI) can filter the trade list by unlocked-only offers or by tier.
• Sentry pylon threat scaling — when Tribulation is installed, the pylon's defense output now scales with the local threat level.

Changed

• Locked trades in the merchant GUI now have a more distinct visual treatment so it's immediately clear an offer is unavailable.

Fixed

• HUD sprites no longer disappear when ImmediatelyFast or Blur+ is installed.
• Jade no longer shows a duplicate countdown timer on baby villagers.
• WTHIT block tooltips now display correctly on villager workstations.
• Placing a villager pickup item with malformed data now correctly spawns a default villager instead of nothing.