fix(activity): runs keep their true outcome and spend, the page reaches every kept row, a closing dialog leaves the server log alone

Backend
- A run's outcome write sits outside the job's own try: a database blip after a run that
  succeeded no longer records it as failed (the row waits for the next start's sweep).
- An interrupted run keeps what it spent (the sweep sums its quota rows, as finish does).
- The Scheduler's ad-hoc row says running while any backfill runs, not only the newest.
- recent_runs reads each job's last runs off its index instead of ranking the whole table.
- An interval change is stored with its audit row in one transaction, then rescheduled.
- One API instance per database is the stated contract (.env.example, jobruns).
- Turning full history on for a channel already complete records no run.
- Migration 0109 round-trips interrupted and ad-hoc runs; the run words' DB CHECKs are
  test-held to the enums; the account filter is one helper for the four activity reads.
- An audit row says how many of its request's log lines are still kept.

Frontend
- An "All" period reaches every row still kept (runs and admin actions outlive 90 days).
- Back/Forward is followed in place by the server log: a closing dialog no longer turns
  Live off; a pivot still opens a fresh log.
- Runs moved over from the audit log read their one-liner in the reader's language.
- Filter choices or accounts that failed to load say so beside the filters, with a retry.
- An old server-log link keeps its account, text and range; a remembered retired page
  opens its tab.
- A request whose lines are gone says so instead of linking to an empty list.
- The log lines and the history rows share one row frame, and the server log one list
  frame with the other tabs; an empty list is announced; each day's quota is readable.

backend/app/routes/audit.py

@@ -15,17 +15,15 @@ from app import audit
 from app.audit import AuditAction
 from app.auth import admin_user
 from app.db import get_db
-from app.models import AuditLog, User
+from app.models import AuditLog, LogEvent, User
+from app.routes import _account as account
 from app.routes._keyset import PAGE_MAX, accounts, older_than, page, utc
 from app.utils import iso, like_escape
 
 router = APIRouter(prefix="/api/admin/audit", tags=["admin"])
 
-# `none` selects the rows no account made (the background) — a value to filter on, not "any".
-NONE = "none"
 
-
-def _serialize(row: AuditLog) -> dict:
+def _serialize(row: AuditLog, lines: dict[str, int]) -> dict:
     return {
         "id": row.id,
         "created_at": iso(row.created_at),
@@ -38,6 +36,9 @@ def _serialize(row: AuditLog) -> dict:
         "before": row.before,
         "after": row.after,
         "request_id": row.request_id,
+        # How many of that request's log lines are still kept: they go after days, the row after
+        # months, and a link to none would open an empty list.
+        "log_lines": lines.get(row.request_id, 0) if row.request_id else 0,
     }
 
 
@@ -56,11 +57,7 @@ class AuditFilters:
         if self.action is not None and skip != "action":
             out.append(AuditLog.action == self.action)
         if self.actor is not None:
-            out.append(
-                AuditLog.actor_id.is_(None)
-                if self.actor == NONE
-                else AuditLog.actor_id == int(self.actor)
-            )
+            out.append(account.condition(AuditLog.actor_id, self.actor))
         if self.since is not None:
             out.append(AuditLog.created_at >= utc(self.since))
         if self.until is not None:
@@ -82,7 +79,7 @@ class AuditFilters:
 
 def audit_filters(
     action: str | None = Query(default=None, max_length=48, pattern=r"^[a-z][a-z0-9_]*$"),
-    user: str | None = Query(default=None, pattern=r"^(none|[0-9]{1,10})$"),
+    user: str | None = Query(default=None, pattern=account.PATTERN),
     q: str | None = Query(default=None, max_length=200),
     since: datetime | None = None,
     until: datetime | None = None,
@@ -109,8 +106,17 @@ def list_audit(
         limit,
         lambda r: r.created_at,
     )
+    requests = {r.request_id for r in rows if r.request_id}
+    lines: dict[str, int] = {}
+    if requests:
+        counted = db.execute(
+            select(LogEvent.request_id, func.count())
+            .where(LogEvent.request_id.in_(requests))
+            .group_by(LogEvent.request_id)
+        )
+        lines = {rid: n for rid, n in counted.tuples() if rid is not None}
     return {
-        "items": [_serialize(r) for r in rows],
+        "items": [_serialize(r, lines) for r in rows],
         "accounts": accounts(db, {r.actor_id for r in rows if r.actor_id is not None}),
         "next_cursor": cursor,
     }