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/_account.py

@@ -0,0 +1,17 @@
+"""The account filter the activity page's lists share (runs, admin actions, server log, quota): one
+filter bar drives them all, so the value it sends means the same on every tab.
+
+The value is an account id, or `none` — the rows no account made (the background) — a value to filter
+on, not the absence of a filter.
+"""
+
+from sqlalchemy import ColumnElement
+
+NONE = "none"
+# The `user` query parameter's shape on every route that takes it.
+PATTERN = r"^(none|[0-9]{1,10})$"
+
+
+def condition(column, value: str) -> ColumnElement[bool]:
+    """`column` (an account id column) narrowed to `value`."""
+    return column.is_(None) if value == NONE else column == int(value)

backend/app/routes/admin_logs.py

@@ -25,6 +25,7 @@ from app import logsink
 from app.auth import admin_user
 from app.db import get_db
 from app.models import 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 like_escape
 
@@ -37,9 +38,9 @@ FACET_EVENTS_MAX = 100
 Level = Literal["TRACE", "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]
 # The filters a facet can leave out of its own count (`LogFilters.conditions`).
 Facet = Literal["levels", "sources", "user", "event"]
-# `none` selects the rows that have no account / no event code (a scheduler line, an anonymous
-# request) — a real value to filter on, not the absence of a filter.
-NONE = "none"
+# `none` selects the rows that have no event code, as the account filter's `none` (app/routes/_account)
+# selects the rows of no account — a real value to filter on, not the absence of a filter.
+NONE = account.NONE
 
 
 @dataclass(frozen=True)
@@ -67,11 +68,7 @@ class LogFilters:
         if self.sources and skip != "sources":
             out.append(LogEvent.source.in_(self.sources))
         if self.user is not None and skip != "user":
-            out.append(
-                LogEvent.user_id.is_(None)
-                if self.user == NONE
-                else LogEvent.user_id == int(self.user)
-            )
+            out.append(account.condition(LogEvent.user_id, self.user))
         if self.event is not None and skip != "event":
             out.append(
                 LogEvent.event.is_(None) if self.event == NONE else LogEvent.event == self.event
@@ -103,7 +100,7 @@ class LogFilters:
 def log_filters(
     levels: list[Level] = Query(default=[]),
     sources: list[str] = Query(default=[], max_length=8),
-    user: str | None = Query(default=None, pattern=r"^(none|[0-9]{1,10})$"),
+    user: str | None = Query(default=None, pattern=account.PATTERN),
     event: str | None = Query(
         default=None, max_length=64, pattern=r"^(none|[a-z][a-z0-9_]*(\.[a-z0-9_]+)*)$"
     ),

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,
     }

backend/app/routes/channels.py

@@ -512,7 +512,9 @@ def update_channel(
     # so the whole catalogue lands in seconds instead of over the scheduler's paced 10-minute ticks.
     # The request returns right away; the channel page's live poll shows the count climb. The
     # scheduler still finishes a very large channel's tail on its normal runs (deep_requested stays set).
-    if deep_turned_on:
+    # A channel whose history is all in gets no run: it would only say "nothing to do", one kept row
+    # per flip of the flag.
+    if deep_turned_on and not (channel is not None and channel.backfill_done):
         scheduler.run_ad_hoc(
             scheduler.CHANNEL_BACKFILL,
             partial(backfill_channel_now, channel_id, user.id),

backend/app/routes/quota.py

@@ -14,6 +14,7 @@ from app import quota
 from app.auth import admin_user, current_user
 from app.db import get_db
 from app.models import QuotaEvent, User
+from app.routes import _account as account
 from app.routes._keyset import utc
 
 router = APIRouter(prefix="/api/quota", tags=["quota"])
@@ -48,7 +49,7 @@ def my_usage(user: User = Depends(current_user), db: Session = Depends(get_db))
 def admin_usage(
     since: datetime | None = None,
     until: datetime | None = None,
-    user: str | None = Query(default=None, pattern=r"^(none|[0-9]{1,10})$"),
+    user: str | None = Query(default=None, pattern=account.PATTERN),
     _: User = Depends(admin_user),
     db: Session = Depends(get_db),
 ) -> dict:
@@ -60,9 +61,7 @@ def admin_usage(
     if until is not None:
         window.append(QuotaEvent.created_at < utc(until))
     if user is not None:
-        window.append(
-            QuotaEvent.user_id.is_(None) if user == "none" else QuotaEvent.user_id == int(user)
-        )
+        window.append(account.condition(QuotaEvent.user_id, user))
 
     totals = db.execute(
         select(QuotaEvent.user_id, func.sum(QuotaEvent.units))

backend/app/routes/runs.py

@@ -19,14 +19,13 @@ from app import scheduler
 from app.auth import admin_user
 from app.db import get_db
 from app.models import Channel, JobRun, LogEvent, User
+from app.routes import _account as account
 from app.routes._keyset import PAGE_MAX, accounts, older_than, page, utc
 from app.runstatus import RunStatus
 from app.utils import iso, like_escape
 
 router = APIRouter(prefix="/api/admin/runs", tags=["admin"])
 
-# `none` selects the runs no account started (the scheduled ones).
-NONE = "none"
 Facet = Literal["job", "status"]
 
 
@@ -68,11 +67,7 @@ class RunFilters:
         if self.status is not None and skip != "status":
             out.append(JobRun.status == self.status)
         if self.actor is not None:
-            out.append(
-                JobRun.actor_id.is_(None)
-                if self.actor == NONE
-                else JobRun.actor_id == int(self.actor)
-            )
+            out.append(account.condition(JobRun.actor_id, self.actor))
         if self.since is not None:
             out.append(JobRun.started_at >= utc(self.since))
         if self.until is not None:
@@ -93,7 +88,7 @@ class RunFilters:
 def run_filters(
     job: str | None = Query(default=None, max_length=40, pattern=r"^[a-z][a-z0-9_]*$"),
     status: RunStatus | None = None,
-    user: str | None = Query(default=None, pattern=r"^(none|[0-9]{1,10})$"),
+    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,

backend/app/routes/scheduler.py

@@ -17,8 +17,9 @@ from app.scheduler import (
     JOB_INTERVALS,
     MAX_INTERVAL,
     MIN_INTERVAL,
-    apply_interval,
+    reschedule,
     scheduler_snapshot,
+    stage_interval,
     trigger_all,
     trigger_job,
 )
@@ -42,14 +43,14 @@ def set_job_interval(
     admin: User = Depends(admin_user),
     db: Session = Depends(get_db),
 ) -> dict:
-    """Change how often a scheduler job runs (minutes). Persisted as an override and applied
-    to the live scheduler immediately."""
+    """Change how often a scheduler job runs (minutes). Stored as an override together with its
+    audit row, then applied to the live scheduler."""
     if job_id not in JOB_INTERVALS:
         raise not_found("job")
     minutes = body.interval_minutes
     if not (MIN_INTERVAL <= minutes <= MAX_INTERVAL):
         raise refused(400, "invalid_interval", min=MIN_INTERVAL, max=MAX_INTERVAL)
-    applied = apply_interval(db, job_id, minutes)
+    applied = stage_interval(db, job_id, minutes)
     audit.record(
         db,
         admin.id,
@@ -60,6 +61,7 @@ def set_job_interval(
         after={"interval_minutes": applied},
     )
     db.commit()
+    reschedule(job_id, applied)
     return {"ok": True, "id": job_id, "interval_minutes": applied}