feat(docker): container detail page + lifecycle timeline (milestone 77 #942)

New /plugins/docker/container/<host_id>/<name> detail page (v1 quality):
status/health badge, uptime, CPU/mem, restart count, last exit code (+OOM),
net + block I/O (humanised), image/compose/swarm-service/node/ports, a
range-toggled CPU/mem history graph (HTMX fragment reusing the time-range
selector), and a lifecycle timeline rendered from docker_events (glyph+colour
per event kind). Not-found and empty-history/empty-timeline states included.
Container names in the main list and the per-host hub panel now link to it.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016Jg27rgypiW2efULXJDtMC

plugins/docker/templates/docker/rows.html

@@ -55,7 +55,7 @@
             <span class="dot {% if c.status == 'running' %}dot-up{% elif c.status == 'paused' %}dot-warn{% else %}dot-down{% endif %}"></span>
             <div>
               <div style="font-weight:500;font-size:0.9rem;">
-                {{ c.name }}
+                <a href="/plugins/docker/container/{{ c.host_id }}/{{ c.name }}" style="color:inherit;text-decoration:none;border-bottom:1px dotted var(--border-mid);">{{ c.name }}</a>
                 {% if c.health == 'healthy' %}<span title="healthy" style="color:var(--green);font-size:0.7rem;">●</span>
                 {% elif c.health == 'unhealthy' %}<span title="unhealthy" style="color:var(--red);font-size:0.7rem;">●</span>
                 {% elif c.health == 'starting' %}<span title="health: starting" style="color:var(--orange);font-size:0.7rem;">◐</span>{% endif %}