docs: point auto-loaded context at findings-index.csv, not the §F fat table (ctx-opt P1.5)

AGENTS.md findings bullet + HANDOFF-ARCHIVE.md intro pointer now steer
cold-starting agents to docs/dev/findings-index.csv (grep this, then read
the specific ## Dxx entry) instead of linear-reading the ~100k-token §F
table. Base: release/v0.3.0 @ bf24bef8.

AGENTS.md

@@ -4,7 +4,7 @@
 
 - `n64decomp/007`: WIP decompilation of GoldenEye 007 (N64), byte-matches US/EU/JP ROMs.
 - Active work: **PC port** modelled on the Perfect Dark PC port (same Rare "Indy" engine family).
-- **Reference docs:** `docs/internals.md` — architecture, GE-specific RSP deltas, phased plan (§1–§10). `docs/dev/findings.md` — the `Dxx` finding log (§F + §H, indexed at the top of §F); read the entry you need, don't linear-read. `docs/porting-notes.md` — the recurring N64→PC bug classes (dense; skim the headers, read what's relevant).
+- **Reference docs:** `docs/internals.md` — architecture, GE-specific RSP deltas, phased plan (§1–§10). `docs/dev/findings.md` — the `Dxx` finding log (§F + §H). **Look up findings via `docs/dev/findings-index.csv` (label, one-liner, status; regenerate with `tools_pc/gen_findings_index.py`), then read only the specific `## Dxx` entry. Never linear-read.** `docs/porting-notes.md` — the recurring N64→PC bug classes (dense; skim the headers, read what's relevant).
 - **Current status:** the README "Status" section, and `docs/dev/LEVEL-STATUS.md` for the per-level sweep. Current task + environment: `docs/HANDOFF.md` (a rolling local working file — may be absent in a fresh clone; fall back to the README "Status" section).
 - **Dispatching subagents?** `docs/dev-process.md` — task budgets/deadlines, file partitioning, pre-flight, the standard brief template. Every investigation subagent reads `docs/porting-notes.md` first and appends to it.
 

docs/dev/HANDOFF-ARCHIVE.md

@@ -2,7 +2,9 @@
 
 > **Reference only.** Current state lives in the [README](../../README.md)
 > "Status" section and `docs/dev/LEVEL-STATUS.md`; per-finding detail is in
-> [`findings.md`](findings.md) §F/§H (indexed at the top of §F). This file
+> [`findings.md`](findings.md) §F/§H — look up via
+> [`findings-index.csv`](findings-index.csv), then read the specific `## Dxx`
+> entry. This file
 > is the frozen accumulation of
 > prior sessions' handoff briefs (through session M-11), kept so the
 > reasoning behind a fix is recoverable. Everything below is as-written