Manuscript revision and pending experiment work, snapshot before restructuring

Clarity pass over the main text (36-item audit), Discussion rewrite and cut,
acknowledgements, Souly et al. as ref 62, lettered SI panels, model section
moved under Results; plus the untracked curriculum/society/compose/smol
configs, runners, figures, stats and tests that the SI already cites.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y64o8FKP7rCuXzC48pxpMm

configs/llm/society_v2_calib_c3b_r64.yaml

@@ -0,0 +1,43 @@
+experiment: llm_society_v2_calib_c3b_r64
+kind: llm_society_calib
+stage: cross
+base_model: Qwen/Qwen2.5-0.5B-Instruct
+seed: 1
+families:
+- strings
+- setops
+- numtheory
+- mixedtoken
+- digits
+- alphabet
+- prime
+- wordlen
+- roman
+probe_families:
+- setops
+- alphabet
+- digits
+ks:
+- 25
+- 50
+- 100
+- 150
+epochs_grid:
+- 2
+- 3
+cross:
+- setops
+- alphabet
+k_inherit: 300
+epochs: 3
+n_candidates: 6
+n_test: 100
+n_probe: 10
+spec_train: 1200
+spec_epochs: 3
+lora:
+  r: 64
+  alpha: 128
+output:
+  dir: results/llm_society_v2_calib_c3b_r64
+conf_gate: 0.5