Opening a container from a stack's Containers table showed
"Home > Containers > <container>" instead of keeping the stack trail,
so the user could not navigate back to the stack.
Two root causes are addressed:
1. Route param collision: docker.stacks.stack used the query param `id`
for the numeric stack DB id, while its child docker.stacks.stack.container
uses the path param `id` for the container id. Navigating into a container
overwrote the stack id. The stack id param is renamed `id` -> `stackId`
everywhere it is read or written (route url, stacks datatable link,
create-stack redirect, gitops workflow card link, stack ItemView reader).
2. Hardcoded breadcrumbs: the container details ItemView always rendered the
global "Containers" crumb. Breadcrumbs are now state-aware: when reached
via docker.stacks.stack.container the stack trail
(Stacks > <stack> > <container>) is rebuilt from the inherited stack params,
honoring external/orphaned stacks.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>