lint: wrap long lines (E501), fix F841/F821/E731 — make check fully green

All 32 findings resolved: regex literals kept single-line with noqa
(pattern IS the reviewed artifact), HTML rows string-concatenated for
line length, walrus tuple in BIP-340 verify split into named generator,
unused pytest import dropped. No behavior changes; 44/44 tests pass.
Full-gate discipline restored: ruff exit 0.

cayceops/components/publisher/images.py

@@ -15,9 +15,19 @@ WIDTH, HEIGHT = 1080, 1350
 
 _BRANDS = {
     # bitcoinhotels — warm gold on near-black
-    "bh": {"bg": (20, 18, 16), "accent": (201, 168, 76), "text": (242, 236, 224), "muted": (150, 140, 120)},
+    "bh": {
+        "bg": (20, 18, 16),
+        "accent": (201, 168, 76),
+        "text": (242, 236, 224),
+        "muted": (150, 140, 120),
+    },
     # hardcap — bitcoin orange on cool black
-    "hc": {"bg": (13, 13, 16), "accent": (247, 147, 26), "text": (250, 250, 250), "muted": (120, 120, 130)},
+    "hc": {
+        "bg": (13, 13, 16),
+        "accent": (247, 147, 26),
+        "text": (250, 250, 250),
+        "muted": (120, 120, 130),
+    },
 }
 
 

cayceops/components/publisher/nostr.py

@@ -119,7 +119,14 @@ def _schnorr_verify(sig32: bytes, msg32: bytes, xonly_pub32: bytes) -> bool:
     if pub_point is None:
         return False
     e = int.from_bytes(tag_hash("BIP0340/challenge", sig32[:32] + xonly_pub32 + msg32), "big") % N
-    r_point = point_add(point_mul((Gx := 0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798, Gy := 0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8), s), point_mul(pub_point, (N - e) % N))
+    generator = (
+        0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798,  # Gx
+        0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8,  # Gy
+    )
+    r_point = point_add(
+        point_mul(generator, s),
+        point_mul(pub_point, (N - e) % N),
+    )
     if r_point is None or r_point[1] % 2 != 0:
         return False
     return r_point[0] == r
@@ -134,7 +141,8 @@ def verify_event(event: dict[str, Any]) -> bool:
     )
     if hashlib.sha256(serialized.encode("utf-8")).hexdigest() != event["id"]:
         return False
-    compressed = PublicKey(bytes.fromhex("02" + event["pubkey"])).format()  # 33-byte, prefix 02
+    # 33-byte compressed point (02-prefixed x-only)
+    compressed = PublicKey(bytes.fromhex("02" + event["pubkey"])).format()
     return _schnorr_verify(
         bytes.fromhex(event["sig"]), bytes.fromhex(event["id"]), compressed[1:]
     )
@@ -152,7 +160,9 @@ def relay_publish(relay_url: str, event: dict[str, Any], timeout: float = 10.0)
     return str(reply[1])
 
 
-def publish(relays: list[str], event: dict[str, Any], timeout: float = 10.0) -> list[dict[str, str]]:
+def publish(
+    relays: list[str], event: dict[str, Any], timeout: float = 10.0
+) -> list[dict[str, str]]:
     """Publish to every relay; report per-relay outcome (never raises unless all fail)."""
     results = []
     for relay in relays:

cayceops/components/publisher/publisher.py

@@ -37,10 +37,22 @@ def _caption(theme: str, link: str) -> str:
         "elsalvador-budget": "A real weekly budget on a Bitcoin standard.",
     }
     bodies = {
-        "lightning-abroad": "No foreign transaction fees, no dynamic currency conversion, no declines. Field-tested guide.",
-        "seed-strategy": "Steel plate, memorized + decoy, or split custody — the full breakdown, brutally honest.",
-        "atm-fees": "The prepared traveler pays 4-6%. The difference is knowing the operator and the no-KYC cap.",
-        "elsalvador-budget": "Surf hostels, comidas, coworking — the corners where you still need dollars, and the 90-day protocol.",
+        "lightning-abroad": (
+            "No foreign transaction fees, no dynamic currency conversion, "
+            "no declines. Field-tested guide."
+        ),
+        "seed-strategy": (
+            "Steel plate, memorized + decoy, or split custody — "
+            "the full breakdown, brutally honest."
+        ),
+        "atm-fees": (
+            "The prepared traveler pays 4-6%. The difference is knowing "
+            "the operator and the no-KYC cap."
+        ),
+        "elsalvador-budget": (
+            "Surf hostels, comidas, coworking — the corners where you still "
+            "need dollars, and the 90-day protocol."
+        ),
     }
     return _CAPTION_TEMPLATE.format(
         hook=hooks.get(theme, theme.replace("-", " ").title()),
@@ -83,7 +95,12 @@ def _plan(cfg: Config, sess, days: int = 4) -> dict:
         )
         sess.add(item)
         sess.flush()
-        audit(sess, actor="daemon:publisher", action="plan_draft", detail={"item": item.id, "theme": theme, "channel": channel})
+        audit(
+            sess,
+            actor="daemon:publisher",
+            action="plan_draft",
+            detail={"item": item.id, "theme": theme, "channel": channel},
+        )
         created += 1
     return {"created": created}
 
@@ -103,7 +120,12 @@ def _approve(item_id: int, actor: str, sess) -> int:
         )
         return 1
     item.status = ContentStatus.APPROVED
-    audit(sess, actor=actor, action="approve_content", detail={"item": item.id, "channel": item.channel})
+    audit(
+        sess,
+        actor=actor,
+        action="approve_content",
+        detail={"item": item.id, "channel": item.channel},
+    )
     return 0
 
 
@@ -132,7 +154,9 @@ def _render_image(item: ContentItem, cfg: Config) -> str | None:
 
 def _publish_nostr(item: ContentItem, cfg: Config, sess, sender=None) -> str:
     if not cfg.nostr_private_key or not cfg.nostr_relays:
-        raise RuntimeError("nostr channel requires CAYCE_OPS_NOSTR_PRIVATE_KEY and CAYCE_OPS_NOSTR_RELAYS")
+        raise RuntimeError(
+            "nostr channel requires CAYCE_OPS_NOSTR_PRIVATE_KEY and CAYCE_OPS_NOSTR_RELAYS"
+        )
     secret = nostr.normalize_key(cfg.nostr_private_key)
     event = nostr.build_event(secret, item.caption, tags=[["t", item.theme]])
     if not nostr.verify_event(event):  # pragma: no cover — build/verify symmetry