docs(perf): add owner report, run-3 results and player tuning notes

.pi/journal.md

@@ -577,3 +577,21 @@ Results (full tables in `analysis/client-perf/RESULTS-proxy.md` §Run 2):
 Remaining: B6 missing-texture check → ship modernfix-mixins; add Iris Flywheel Compat +
 Flerovium (visual check, then `packwiz modrinth add`, then re-run B0); DH low-quality
 visual check; B13 spark; B14 ×3 more; ship via build.py; owner report.
+
+## Session 2026-10-18 (b) — shipped, run 3, owner report
+
+- Shipped `7841361`: ModernFix dynamic_resources (enforced config; owner waived texture
+  check), Flerovium 1.1.2, Iris Flywheel Compat 2.4.0. Deck already had DH LOW.
+- **Incident**: 7841361 refreshed the index while alexsmobs/akashictome held boot
+  re-saves → server packwiz install "Hash invalid" → server down 14:06–14:18. Fixed
+  `c5d25fa`. Rule: `git checkout -- config/` **before** `packwiz refresh`, not just
+  before staging.
+- Run 3 (chain-0418): B0v2 noise p99 0.41 ms / 1%-low 1.6 fps. **Flerovium did not
+  hold up** (S1 loss, S3 too noisy) → recommend removal (owner decision pending).
+  B14 ×4: totals ~flat (jungle 130→128, river 208→212, warm ocean 145→136) → spawn
+  tuning harmless but ineffective; keep/revert is the owner's call.
+- Docs: `analysis/client-perf/OWNER-REPORT.md` (new), RESULTS-proxy §Run 3,
+  PLAYER-TUNING (5 GB heap; Iris Flywheel Compat under shaders).
+- Verified ModernFix honors the shipped override on the server boot log.
+- Open: owner decisions (Flerovium, spawn tuning); B13 spark (optional); fleet
+  confirmation; push when the owner says so.