feat(v5.2.0): finalize Infrastructure & Polish (tests isolation, xdist, lint, CI)

tests/conftest.py: mutate the settings singleton (instead of rebinding) so DB + backup dir are isolated per test -> pytest-xdist safe.
Real backup tests (snapshot/prune/admin API) and OAuth mock tests (Gitea/GitHub/link) replace the previous skips.
init_db() now also creates webhook_subscriptions (full schema without the FastAPI lifespan).
ruff check is clean; .eslintrc.json migrated to eslint.config.mjs (flat config).
CI: lint job (ruff + eslint), parallel tests (-n auto), run on every branch push.
VERSION 5.11.1.

app/services/agent_engine.py

@@ -166,7 +166,7 @@ class AgentEngine:
         used_model = model or ""  # peut être ajusté par un repli de modèle (404/410)
 
         try:
-            for step in range(settings.agent_max_iterations or MAX_ITERATIONS):
+            for _step in range(settings.agent_max_iterations or MAX_ITERATIONS):
                 if self._tokens >= settings.agent_max_tokens_budget:
                     yield self._event("error", {"message": "Budget de tokens dépassé"})
                     break

app/services/embeds.py

@@ -147,7 +147,7 @@ def embed_src(url: str) -> str | None:
     u = urlparse(url if url.startswith("http") else "https://" + url)
     if u.scheme not in ("http", "https"):
         return None
-    host = (u.hostname or "").lower().replace("www.", "")
+    (u.hostname or "").lower().replace("www.", "")
     netloc = (u.netloc or "").lower()
     params = parse_qs(u.query)
     # Google Maps share links encode the query in the path (…&q=/maps/…)
@@ -191,4 +191,4 @@ def embed_html(src: str, *, height: int = 520) -> str:
         f'style="width:100%;height:{height}px;border:none;border-radius:8px;background:#000;" '
         f'allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; '
         f'picture-in-picture" allowfullscreen></iframe>'
-    )
+    )

app/services/export.py

@@ -243,7 +243,8 @@ def _parse_table_at(lines: list[str], i: int, n: int):
         rows.append(cells)
         j += 1
     width = max(len(r) for r in rows)
-    pad = lambda r: r + [""] * (width - len(r))
+    def pad(r):
+        return r + [""] * (width - len(r))
     align = (align + ["left"] * width)[:width]
     return (
         {
@@ -657,7 +658,7 @@ def blocks_to_html(blocks: list) -> str:
             url = b.get("src") or ""
             emb = (b.get("embed_type") or "")
             if emb in ("inline_dbs", "collection"):
-                parts.append(f'<div class="embed-note">[Embedded content]</div>')
+                parts.append('<div class="embed-note">[Embedded content]</div>')
             elif emb == "download":
                 parts.append(f'<a href="{_text(url)}" download>⬇ {_text(b.get("file_name") or "Download")}</a>')
             elif emb == "pdf" and url:

app/services/notifications.py

@@ -94,7 +94,7 @@ def _do_mentions(conn, handles, actor_id, ntype, title, message,
                  resource_type, resource_id, url, notified):
     placeholders = ",".join("?" * len(handles))
     rows = conn.execute(
-        "SELECT id, login, email FROM users WHERE lower(login) IN (%s)" % placeholders,
+        f"SELECT id, login, email FROM users WHERE lower(login) IN ({placeholders})",
         handles,
     ).fetchall()
     for row in rows:

app/services/og_fetcher.py

@@ -29,7 +29,7 @@ def _extract_og(html: str) -> dict:
     text = html[:400_000]  # only scan the beginning — that's where <head> lives
     props: dict[str, str] = {}
     for m in _META_RE.finditer(text):
-        groups = m.groups()
+        m.groups()
         content = ""
         prop = ""
         for s in re.findall(r"(?:content|property|name)=[\"']([^\"']*)[\"']", m.group(0)):
@@ -121,4 +121,4 @@ async def fetch_og_metadata(url: str, timeout: float = 6.0) -> dict:
         "image": abs_url(img),
         "site_name": site.strip()[:100],
         "favicon": favicon,
-    }
+    }

app/services/trash.py

@@ -84,4 +84,4 @@ async def trash_purge_scheduler(interval_hours: int = 24):
             purge_expired(days=30)
         except Exception as exc:  # pragma: no cover - defensive only
             logger.warning("Trash purge failed: %s", exc)
-        await asyncio.sleep(interval_hours * 3600)
+        await asyncio.sleep(interval_hours * 3600)