chore(canonicals): vendor brokkr R34 psych-profile canon; re-sync R32-1B doc drift

Vendor the R34/R35 psych-profile reference (Vuong-directed via brokkr) as two
pinned canonicals under docs/vendor/brokkr-r34-psych-profile/:
- brokkr-psych-profile-authoring-spec-v1 (governs on conflict)
- brokkr-psych-profile-parameters-v1 (builder-facing distillation)
Both canonical_source=brokkr-smithy, tolerate_drift; drift-clean.

Re-sync the two tolerate_drift worldtree prose pins (affect-egress-consumer-
reference, conversation-api-spec): the drift was a benign 2-line R32-1B note
(unbounded-z PAD range) documenting a change already adopted in v0.20.9, not
the anticipated we-framing conditional. All canonicals now drift-clean.

Snapshot persistent-memory.md for the execution arc: P06 memory-half driven
(308/308 clean) + scored by brokkr (R35.45) — the authored psychological_profile
is the validated mechanism for memory-salience divergence (authored 0.618 vs
stripped 0.235 null, delta +0.382); memory extraction now reasoning-off; WT #355
root-caused via ratatoskr telemetry.

No version bump: docs/vendoring + memory-snapshot only, no runtime code change.

docs/conversation-api-spec.md

@@ -2858,6 +2858,8 @@ Semantics:
   which must carry all three of `pleasure` / `arousal` / `dominance`, each a
   float in `[-1.0, 1.0]`. Any other top-level key → 422 `validation_failed`;
   a missing or malformed `pad` → 422 `persona_seed_invalid`.
+
+  > **✓ R32-1B (landed, v1.0.0b29):** The PAD range `[-1.0, 1.0]` relaxes to an **unbounded latent `z`** with a finite wire sanity bound (`~±10`) as of R32 Slice-1B. The JSON shape/fields/types are UNCHANGED — only the declared range/semantics change (the value becomes a latent that renders to a bounded display value). Consumers that merely store-and-return PAD need no change; consumers that validate/clamp PAD to `[-1,1]` must relax that bound. Source of truth: `docs/contracts/persona_envelope.contract.md` rev 1.7 (INV-ENV-16).
 - **Seeds the current mood POINT, not the setpoint.** The OCEAN persona
   (above) fixes the setpoint the mood relaxes toward; this endpoint sets
   where the mood *starts*. It does not alter the persona.