feat: the Passage — crossing over becomes a layered rite (Workstream L)

cross_over was one verdict with one outcome. It is now five beats — listen,
name, unbind, open, release — each revealing something true about the
spirit, each paying escalating essence, each able to twist.

Reveals use the entity's REAL traits; there is no second hidden state
invented for the rite. Twists are trait-driven, verified directly rather
than assumed: a demon collapses the rite 3.6x more often than a calm spirit
(0.360 vs 0.099 at `unbind`) and lies ~31% of the time, while a spirit
under DECEIT_FLOOR cannot lie on any draw. A demon still resists at
`release` and never crosses — the existing judgment rule is preserved, not
re-implemented. Every draw comes from veil_float on the room's physical
entropy, never `random`.

Essence is kept across a collapse. Clawing it back would punish a seeker
for the spirit's instability, which is not theirs to control.

FIXED AN INFINITE LOOP IN THE SALVAGED TESTS, not a flake:
test_full_rite_on_a_calm_stuck_spirit ran `while layer is not None` while
passing collapse=FIRES. Its fixture comment claimed "both twist chances are
0 at these values, so NO draw can make this entity lie or collapse" — that
is false. COLLAPSE_FLOOR is 0.5 (deliberately below judgment's stuck bar of
0.6, as passage.py explains), and the fixture's volatility is 0.61, giving a
real ~9.9% collapse chance. Forced to fire, every layer bounced back to
`listen` and the run hung forever instead of failing.

Three fixes: hold the collapse draw (deceit still fires, which is the
point — it proves a spirit under the floor cannot lie even when told to),
correct the false comment, and bound the loop so a future regression fails
in seconds rather than hanging a test run.

Also added the entire seance.passage i18n block in both languages — the
agent died before writing it, so the gate was failing on 35 missing keys —
and reworded a comment in PassagePanel that spelled out a translation call
in full: the coverage checker greps source text and cannot tell a comment
from real code, so it demanded a key for the placeholder.

34 passage tests pass; 385 frontend; i18n parity and typecheck clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

frontend/src/i18n/es.json

@@ -385,6 +385,64 @@
         "unknownTitle": "la lente no se abre",
         "unknown": "Algo rechazó la cámara y no dijo qué. Inténtalo de nuevo, o acude a otro canal."
       }
+    },
+    "passage": {
+      "title": "el paso",
+      "intro": "un espíritu que desea irse no puede irse solo. cinco capas se interponen entre él y la oscuridad — desenvuelve cada una, y algo verdadero se suelta.",
+      "none": "ninguna presencia que liberar",
+      "noneHint": "invoca a un espíritu antes de intentar el paso",
+      "begin": "comenzar el paso",
+      "attempt": "desenvolver esta capa",
+      "retry": "recoger el hilo de nuevo",
+      "earned": "esencia reunida",
+      "collapsed": "el rito se deshace en tus manos — el hilo vuelve a la primera capa. lo que ya has reunido sigue siendo tuyo.",
+      "lieNote": "lo que esta capa te dijo no era cierto.",
+      "crossedTitle": "se va",
+      "resistedTitle": "no se irá",
+      "layers": {
+        "listen": {
+          "title": "escuchar",
+          "prompt": "guarda silencio, y deja que hable primero."
+        },
+        "name": {
+          "title": "nombrar",
+          "prompt": "di cómo se llamaba, cuando se llamaba algo."
+        },
+        "unbind": {
+          "title": "desatar",
+          "prompt": "halla el nudo que lo retiene aquí, y aflójalo."
+        },
+        "open": {
+          "title": "abrir",
+          "prompt": "haz una puerta donde solo había muro."
+        },
+        "release": {
+          "title": "soltar",
+          "prompt": "suelta. esta es la parte que te cuesta."
+        }
+      },
+      "reveal": {
+        "alignment": {
+          "low": "hay algo bajo este que no te desea bien.",
+          "mid": "no es ni amable ni cruel — solo está cansado.",
+          "high": "fuera lo que fuera en vida, no pretende hacerte daño."
+        },
+        "power": {
+          "low": "es fino como aliento sobre el cristal; no podría herirte aunque lo intentara.",
+          "mid": "tiene peso — suficiente para mover algo pequeño.",
+          "high": "es mucho más fuerte de lo que te ha hecho creer."
+        },
+        "volatility": {
+          "low": "es firme. lleva mucho tiempo esperando y se le da bien.",
+          "mid": "parpadea cuando presionas demasiado.",
+          "high": "no se está quieto — el rito podría deshacerse contigo."
+        },
+        "deceptiveness": {
+          "low": "no sabe mentir, y nunca aprendió.",
+          "mid": "te cuenta casi toda una verdad y se guarda el resto.",
+          "high": "muy poco de lo que dice es de fiar."
+        }
+      }
     }
   },
   "codex": {