Regenerate docs/docs/guide.md to fix the staleness gate

Took PR #458's regenerated guide as the baseline (its own drift, unrelated to
this branch) and additively covered this branch's five W105 contract changes:
player.reputation.* as a writable modifier target, item weeklyCostCents charge
semantics, housing's three-component weekly charge plus the vehicle transport
waiver, NPC startingMemories, and the exists/count collection set. Stamped with
-StampGuide; ./build/Test-Documentation.ps1 passes clean.

Author: The-Running-Dev