chore: archive superseded brief + research into docs/history/

Move the original starting-point brief (now bannered: it holds corrected-wrong claims re GCC 2.6.3 / LaurieWired MCP / all-.CD-LZSS / recomp-first / Windows-hybrid), the architect template, the research output, and link notes out of repo root so no session reads them as guidance before the load order.

docs/history/README.md

@@ -0,0 +1,8 @@
+# docs/history — provenance archive (not active guidance)
+
+Superseded and reference material, kept for the record. **Nothing here is current instruction** — the authoritative docs are `PROJECT_CONTEXT.md`, `docs/SETUP.md`, `docs/formats.md`, and `docs/memory-map.md`.
+
+- `claude-bfm-starting-point.md` — the original project brief. **Superseded; contains corrected-wrong claims** (see its banner). Do not follow.
+- `project_architect_v1.3.0.md` — the methodology template the Project Context File was generated from.
+- `Fable5-ultracode-Full research findings-w42n9cp9t.output` — the raw multi-agent research (sotn workflow, Ghidra/MCP stack, BFM knowledge, WSL specifics) that informed the docs.
+- `*.txt` link notes — original reference URLs (now folded into the docs above).

docs/history/claude-bfm-starting-point.md

@@ -1,3 +1,15 @@
+> # ⛔ SUPERSEDED — HISTORICAL ONLY — DO NOT FOLLOW
+> This was the original project brief. It is kept for provenance. **Several of its
+> claims were investigated and corrected**; do not act on it. The authoritative
+> documents are `PROJECT_CONTEXT.md` (rules/roadmap) and `docs/SETUP.md` (environment).
+>
+> Corrected claims (do **not** follow the versions below):
+> - Compiler is **GCC 2.7.2 / PsyQ 4.0+4.2 era**, NOT "GCC 2.6.3 (same as SOTN)".
+> - MCP server is **GhidrAssistMCP** on Ghidra 12.1, NOT LaurieWired GhidraMCP.
+> - Only **PAC type-4 entries** are LZSS-compressed, NOT "all .CD files".
+> - Strategy is **decomp-first** (recomp deferred to a future generation), NOT recomp-first.
+> - Environment is **all-in-WSL** (Linux-first), NOT a Windows-hybrid setup.
+
 # Brave Fencer Musashi — Decompilation / Recompilation Project
 > CLAUDE.md — Context file for Claude Code sessions