Add the Analytics section: check runs, analytics API and page

Runs (migration 0011): a run groups the cycles of one launch. It opens when an
address enters an idle queue, takes everything submitted or re-checked while it
is open and is finalized when all its addresses are done; a re-check after that
opens a new run, so results of different runs never mix. check_runs,
run_results (one result per address and run, with the verdict and the expected
and stored check counts), subnets, run_id on ip_queue and checks. Existing data
is split into runs at pauses of more than an hour; ingress checks get the
validator that held the address (also at write time from now on).

Analytics (internal/analytics): figures computed from the stored checks of the
latest cycle of each address in the run, as facts next to the verdict: summary,
reasons of partial, data quality, subnets, targets and the subnet x target
matrix by check type, ingress by site, error classes, validators, and the
address lists behind the indicators and error classes. API: analytics runs,
report, lists (JSON or CSV), subnet list; run and subnet filters for the
registry.

Dashboard: /analytics matching the approved mockup (run selector, indicators
with address lists and CSV, error-class dialogs, drill-down to the registry),
subnet list on /settings. Sidebar: the control-api link state, theme toggle and
logout moved to the top, the three dots next to the logo removed, sections
grouped.

Rebuilt bin/control-api and bin/admin-dashboard to match. Plan, summary and the
updated README, API, USAGE, DASHBOARD and ADMIN_CLEANUP docs are in docs/.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/dashboard/templates/registry.html

@@ -26,6 +26,13 @@
 Глубина хранимой истории на адрес настраивается на <a href="/settings">странице настроек</a>.</p>
 
 <form id="registry-filter" class="panel" onsubmit="return false" style="margin-bottom:16px">
+{{if .Run}}<input type="hidden" name="run" value="{{.Run}}">{{end}}
+{{if .Subnet}}<input type="hidden" name="subnet" value="{{.Subnet}}">{{end}}
+{{if or .Run .Subnet}}<div class="panel-body" style="padding-bottom:0">
+<span class="pill pill-info">Из аналитики:{{if .Run}} запуск {{.Run}}{{end}}{{if .Subnet}} · подсеть {{.Subnet}}{{end}}</span>
+<a href="/registry" style="margin-left:10px">сбросить фильтр</a>
+{{if .Run}}<a href="/analytics?run={{.Run}}" style="margin-left:10px">к аналитике</a>{{end}}
+</div>{{end}}
 <div class="panel-body field-row">
 <div class="field" style="flex:1 1 260px">
 <label for="registry-q">Поиск по IP</label>