docs(decisions): amend stale D-records, close resolved Q-records

Amend 7 high-priority D-records with supersession notes:
- D-012: map size superseded by D-094 (256x256)
- D-044: outline color scoped to perception mode per D-154
- D-061: width corrected from 640px to 1200px per D-076
- D-086: smuggler scope removed per D-117/D-122
- D-090: marked [SUPERSEDED] by D-117 (tycoon replaces smuggler/detective)
- D-035: character enum marked obsolete post-D-117
- D-119: sequencing superseded by D-166 cascade

Close 4 resolved scope questions (Q-002, Q-004, Q-005, Q-007).
Fix questions.md index — was 61, actually 96 (33 architecture Qs missing).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

decisions/scope.md

@@ -265,6 +265,7 @@ What we're building: game concept, design pillars, prototype definition, map spe
 - **Raised by:** Tyre (proposal), Team Leader (confirmed)
 - **Dissent:** None
 - **Cross-reference:** [D-114](#d-114-v02-proof-of-life--generator--graphics-not-hand-built-slice) (generator-first proof-of-life)
+- **Amendment (2026-04-05):** The sequencing described here (Sprint 25 as first deliverable, generator proof-of-life gates all subsequent work) is superseded by [D-166](architecture.md#d-166-development-cascade--6-phase-first-things-first-build-order) (2026-03-24), which establishes a strict 6-phase development cascade. The generator spike falls in Phase 5 (World Generation), not Phase 1. The cascade is the authoritative build order.
 
 ### D-120: No skill ceiling in v0.2 — transhumanist ladder deferred
 - **Date:** 2026-03-05