feat(web): context-injection panel — reconstruct the full hidden affect block (v0.20.2)

The affect console now reconstructs + displays the complete affect-context block
Worldtree assembles into the agent's system prompt — never on any wire, hidden from
regular consumers, surfaced here as the reference-impl's privileged dev view.

- extend build_persona_canon.py to emit mood_directive {occ_directives (15),
  pad_band_fallback, salience, pad_band_cutoff, full_only} into the browser canon
  (strings were already in the pinned d2-mood-render-canon; regen via Worldtree loader)
- canonPadFallback(pad) + canonEmotionDirective(type): byte-exact mirrors of Worldtree
  core/persona/renderer._pad_band_fallback + derive_directive
- renderDirective -> a "CONTEXT INJECTION · reconstructed · hidden from consumers" panel:
  mood descriptor [exact] + mood directive [candidate] + relationship directive [exact]
- honest-partial (affect-egress-reference sec 3): affect.emit is type-only (no
  intensity), so the salience gate can't be evaluated -> show BOTH the OCC emotion
  directive AND the PAD-band fallback with the "injected if intensity >= 0.2" caveat,
  never asserting which fires; fallback alone is exact when no dominant_emotion
- vendor + pin affect-egress-consumer-reference.md (tolerate_drift; worldtree-dev
  co-signs + pings on change). drift 6/6 green
- contract amended for the new reconstruction fns + honest-partial provenance

Verified: pytest tests/test_web_* (84) + node Playwright (sindra dominant_emotion=joy
-> joy OCC directive candidate + PAD-band fallback both render with exact/candidate tags).

docs/contracts/web_debug_surface.contract.md

@@ -134,13 +134,14 @@ functions:
       - "POST-004: INV-001 honesty — no fabricated Tier-1 fields. The dominant-emotion centerpiece shows a real OCC dominant_emotion (Tier-1) OR the CANONICAL mood word from canonMood(pad) (Tier-3, dimmed) OR '—'; NEVER a synthesized emotion. The affect-derived grid drops non-emitted metrics (intensity/decay-τ) and shows only real/client-derived cells (baseline/drift real for Tier-1, client-derived samples/volatility). INV-004 — every dynamic value passes through esc(); numerics go through toFixed, never innerHTML-raw."
     flexibility: "open"
 
-  - name: "canonical affect-NL (v0.19.5 — vendored Worldtree d2 render canons)"
-    signature: "canonMood(pad) ; canonDirective(rel) ; loadPersonaCanon()"
-    description: "Render the LITERAL mood word + relationship directive Worldtree context-injects into the agent, byte-exact to Worldtree's own describe_pad + render_d2_canonical."
+  - name: "canonical affect-NL + context-injection reconstruction (v0.19.5 canons; v0.20.2 full context-injection panel)"
+    signature: "canonMood(pad) ; canonDirective(rel) ; canonPadFallback(pad) ; canonEmotionDirective(type) ; renderDirective(snap) ; loadPersonaCanon()"
+    description: "Reconstruct + render the HIDDEN affect-context block Worldtree assembles into the agent's system prompt (never on any wire) — byte-exact to Worldtree's own describe_pad + render_d2_canonical + derive_directive + _pad_band_fallback. The v0.20.2 'context injection' panel shows the full block: mood descriptor + mood directive + relationship directive. Reference: docs/vendor/worldtree-persona-canon/affect-egress-consumer-reference.md (pinned)."
     postconditions:
-      - "POST-001: DETERMINISTIC, no LLM. canonMood mirrors describe_pad (valence×arousal grid + strict ±0.3 bands + dominance clause); canonDirective mirrors render_d2_canonical (interval band-cut lookup + per-band phrase assembly + cross-axis low-trust-precedence behavior clause). BOTH VERIFIED BYTE-EXACT against Worldtree's own renderer run on the live snapshot (the reference harness re-runs Worldtree's functions + asserts string equality — reproducible)."
-      - "POST-002: the canon DATA is VENDORED (docs/vendor/worldtree-persona-canon/{d2-mood-render-canon-v1,d2-render-canon-v1}.json), pinned drift-gated in .corviduo-canonicals.toml (worldtree-persona-{mood,d2}-render-canon-v1); the flat browser form (static/persona_render_canon.json, served /static) is regenerated by scripts/build_persona_canon.py via Worldtree's OWN authoritative loader. Reference-impl posture: ADOPT the dep's canonical render, do NOT invent vocab — an invented 'faintly excited' would MISLEAD where the canonical (±0.3 bands) says 'neutral'."
-      - "POST-003: fail-open — canon absent (fetch fails) → the canonical lines OMIT, the structured pane still renders. The canon-derived strings are esc()'d before the DOM for INV-004 consistency."
+      - "POST-001: DETERMINISTIC, no LLM. canonMood mirrors describe_pad (valence×arousal grid + strict ±0.3 bands + dominance clause); canonDirective mirrors render_d2_canonical; canonPadFallback mirrors renderer._pad_band_fallback BYTE-EXACT (P×A quadrant: hi/lo/mid arousal band × p>0.3/<-0.3/neutral, with the negative_low_dominance (d<-0.3) special case + neutral_high_a + default); canonEmotionDirective is the occ_directives[type].directive lookup (+ tier / full_only flag)."
+      - "POST-002: the canon DATA is VENDORED (docs/vendor/worldtree-persona-canon/{d2-mood-render-canon-v1,d2-render-canon-v1}.json), pinned drift-gated in .corviduo-canonicals.toml; the flat browser form (static/persona_render_canon.json, served /static) is regenerated by scripts/build_persona_canon.py via Worldtree's OWN authoritative loader — v0.20.2 extended it to emit mood_directive {occ_directives, pad_band_fallback, salience, pad_band_cutoff, full_only}. The affect-egress consumer reference is pinned tolerate_drift (worldtree-affect-egress-consumer-reference-v1; worldtree-dev co-signs + pings on change)."
+      - "POST-003: fail-open — canon absent (fetch fails) → the reconstructed lines OMIT, the structured console still renders. Every canon-derived string is esc()'d before the DOM (INV-004)."
+      - "POST-004: HONEST-PARTIAL provenance (affect-egress-reference §3). The mood descriptor + relationship directive are EXACT (tagged 'exact'); the mood DIRECTIVE is a CANDIDATE pair (tagged 'candidate') — the OCC emotion directive for the delivered dominant_emotion type AND the PAD-band fallback — because affect.emit is type-only (no intensity) so the salience gate (≥0.2) can't be evaluated; BOTH are shown with the 'injected if intensity ≥ salience' caveat, never asserting which fires. When dominant_emotion is absent the fallback alone is EXACT. The panel is labeled reconstructed + hidden-from-consumers + dev-only (the reference-impl's sanctioned understand/reconstruct use, NOT end-user display per the reference's caveat). WATCH: a pending Worldtree render_d2_canonical change conditionally drops the trailing 'avoid premature we-framing' clause under a 3-gate combo — canonDirective holds as-is until worldtree-dev pings with the exact conditional + a canon bump."
     flexibility: "open"
 
 invariants: