feat: matrix/graph data views, wire-generated anomalies, http cookie fix

- auth: session cookie Secure only over https — plain-http LAN access was
  silently dropping the cookie, killing WS auth ('connection unstable')
- wire ghost: server-side spike detection on jitter baseline (3σ + 2.5×mean,
  20KB/s floor, 20s throttle) — wire anomalies now flood every session with
  zero hardware, pushed to clients as {type:'anomaly'} frames
- telemetry cadence 3-5s for live graphs; ambient whispers unchanged
- frontend: MATRIX view (data-rain interleaved with live utterances/anomaly/
  telemetry strings), GRAPHS view (scrolling jitter/variance/dns lines +
  anomaly markers + counters), BOARD/MATRIX/GRAPHS switcher
- connection banner: 'connecting' is now neutral 'tuning the veil…', only
  unstable/closed warns
- db: recreated quantumancy(+_test) as UTF8 (was SQL_ASCII — crashed on
  non-ASCII spirit text); README quickstart updated
- i18n: seance.views.* EN/ES

backend/app/routes/auth.py

@@ -1,6 +1,6 @@
 from datetime import datetime, timezone
 
-from fastapi import APIRouter, Cookie, Depends, HTTPException, Response, status
+from fastapi import APIRouter, Cookie, Depends, HTTPException, Request, Response, status
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -34,7 +34,12 @@ async def register(payload: RegisterRequest, db: AsyncSession = Depends(get_db))
 
 
 @router.post("/login", response_model=UserOut)
-async def login(payload: LoginRequest, response: Response, db: AsyncSession = Depends(get_db)):
+async def login(
+    payload: LoginRequest,
+    request: Request,
+    response: Response,
+    db: AsyncSession = Depends(get_db),
+):
     user = await db.scalar(select(User).where(User.username == payload.username))
     if user is None:
         verify_password(payload.password, _DUMMY_PASSWORD_HASH)
@@ -51,12 +56,15 @@ async def login(payload: LoginRequest, response: Response, db: AsyncSession = De
     db.add(session)
     await db.commit()
 
+    # The app is reached two ways: https via the Cloudflare Tunnel (Secure
+    # required) and plain http on the LAN (a Secure cookie would be dropped
+    # by the browser entirely, silently breaking the séance socket).
     response.set_cookie(
         SESSION_COOKIE_NAME,
         raw_token,
         httponly=True,
         samesite="lax",
-        secure=True,
+        secure=request.url.scheme == "https",
         max_age=int(SESSION_TTL.total_seconds()),
     )
     return user
@@ -64,6 +72,7 @@ async def login(payload: LoginRequest, response: Response, db: AsyncSession = De
 
 @router.post("/logout", status_code=status.HTTP_204_NO_CONTENT)
 async def logout(
+    request: Request,
     response: Response,
     qm_session: str | None = Cookie(default=None, alias=SESSION_COOKIE_NAME),
     db: AsyncSession = Depends(get_db),
@@ -74,7 +83,12 @@ async def logout(
         if session is not None:
             await db.delete(session)
             await db.commit()
-    response.delete_cookie(SESSION_COOKIE_NAME, httponly=True, samesite="lax", secure=True)
+    response.delete_cookie(
+        SESSION_COOKIE_NAME,
+        httponly=True,
+        samesite="lax",
+        secure=request.url.scheme == "https",
+    )
 
 
 @router.get("/me", response_model=UserOut)

backend/app/telemetry.py

@@ -111,3 +111,24 @@ async def sample_network(period_s: float = 1.0) -> TelemetrySample:
     if dns_times:
         sample.dns_ms = sum(dns_times) / len(dns_times)
     return sample
+
+
+def detect_wire_spike(
+    history: list[float], current: float, *, min_samples: int = 6
+) -> float | None:
+    """Return the spike ratio when `current` is anomalous vs the rolling
+    baseline of jitter samples — the Wire Ghost noticing something move.
+
+    Three guards so idle-hour noise doesn't cry ghost: enough history to
+    have a baseline, an absolute floor (20 KB/s) so near-silent links stay
+    silent, and a statistical (3σ) + relative (2.5× mean) threshold.
+    """
+    if len(history) < min_samples:
+        return None
+    mean = sum(history) / len(history)
+    if mean <= 0 or current <= 20_000:
+        return None
+    std = (sum((x - mean) ** 2 for x in history) / len(history)) ** 0.5
+    if current > mean + 3 * std and current > mean * 2.5:
+        return current / mean
+    return None

backend/app/ws.py

@@ -17,6 +17,7 @@ the wire.
 import asyncio
 import contextlib
 import random
+import time
 import uuid
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
@@ -36,7 +37,7 @@ from app.models.entity import Entity
 from app.models.entity_sighting import EntitySighting
 from app.models.event import Event
 from app.rate_limit import RateLimiter
-from app.telemetry import sample_network
+from app.telemetry import detect_wire_spike, sample_network
 from app.tts.piper import synthesize_spirit_voice
 from app.tts.voices import pick_voice
 
@@ -71,6 +72,8 @@ class SeanceState:
     anomalies: list[dict] = field(default_factory=list)
     history: list[dict] = field(default_factory=list)
     ambient_task: asyncio.Task | None = None
+    wire_jitter_history: list[float] = field(default_factory=list)
+    last_wire_anomaly_at: float = 0.0
 
 
 def serialize_entity(entity: Entity) -> dict:
@@ -324,16 +327,36 @@ async def _handle_question(state: SeanceState, text: str) -> None:
 
 
 async def _ambient_loop(state: SeanceState) -> None:
-    """The Wire Ghost's pulse: telemetry every few seconds, a whisper only
-    when the LLM box has been quiet long enough."""
+    """The Wire Ghost's pulse: telemetry every few seconds. Spikes in the
+    jitter baseline become first-class anomaly events (driving fragments and
+    the client's data views); quieter ticks may earn an ambient whisper."""
     try:
         while True:
-            await asyncio.sleep(random.uniform(6, 10))
+            await asyncio.sleep(random.uniform(3, 5))
             try:
                 sample = await sample_network(period_s=1.0)
             except Exception:
                 continue
             await state.send_queue.put({"type": "telemetry", **sample.as_dict()})
+
+            jitter = sample.jitter_bytes_per_s
+            ratio = detect_wire_spike(state.wire_jitter_history, jitter)
+            state.wire_jitter_history = (state.wire_jitter_history + [jitter])[-60:]
+
+            now = time.monotonic()
+            if ratio is not None and now - state.last_wire_anomaly_at > 20:
+                state.last_wire_anomaly_at = now
+                anomaly = {
+                    "source": "wire",
+                    "frequency": round(jitter, 1),
+                    "magnitude": round(ratio * 10, 1),
+                }
+                # Tell the client first so its matrix/graph views light up,
+                # then run the anomaly through the usual séance pipeline.
+                await state.send_queue.put({"type": "anomaly", **anomaly})
+                await _handle_anomaly(state, anomaly)
+                continue
+
             if not spirit_service.ambient_ready():
                 continue
             whisper = await spirit_service.wire_whisper(sample.as_dict(), state.language)