docs: fix enquiry demo script after !3282 merge

data: refresh handbook (Leeds contacts, Landbay ground rent, Virgin Money details)

feat: Cowork enquiry workflow demo script

feat: path resolver hinting for weaker models (Haiku + GPT-5.4m)

feat: expand path resolver evals to 80 + add missing hints

fix: path resolver eval matching — 100% on Sonnet

feat: path resolver evals + hints for edge cases

fix: add per-side boundary ownership paths to schema skeleton

feat: rebuild schema skeleton with 98 attachment paths

chore: remove retired skills entirely

refactor: retire 5 Tier 3 skills, reorganise toolkit

feat: document externalIds in enquiry skills

feat: enquiry workflow skills + PDTF path resolver

docs: DE coverage audit against 5 protocol/regulatory frameworks

feat: agentic diligence loop skill — the transformational skill