Improve operator workflow QoL (#5291)

## Thinking Path

> - Paperclip is a control plane operators use repeatedly to supervise
agent companies.
> - Common operator workflows depend on fast scanning of inboxes, issue
sidebars, workspaces, cost totals, and runtime services.
> - Several small UI and service gaps made those workflows slower or
less clear.
> - This pull request groups the operator-facing QoL changes that can
stand alone from recovery and adapter work.
> - The benefit is a denser, clearer board experience for issue triage
and workspace operation.

## What Changed

- Added inbox assignee/project grouping and issue list token/runtime
totals.
- Improved issue properties with removable blocker chips and workspace
task links.
- Improved execution workspace layout, runtime controls, issues tab
default, and stopped-port reuse behavior.
- Added mobile markdown/routine dialog fixes, page title company names,
sidebar polish, and dashboard run task label cleanup.

## Verification

- `pnpm install --frozen-lockfile`
- `pnpm exec vitest run ui/src/lib/inbox.test.ts
ui/src/components/IssueProperties.test.tsx
ui/src/components/WorkspaceRuntimeControls.test.tsx
server/src/__tests__/workspace-runtime.test.ts
server/src/__tests__/costs-service.test.ts`

## Risks

- Medium UI risk because this touches several operator surfaces. The
branch is intentionally grouped around workflow/QoL files and keeps the
file count below the Greptile limit.

## Model Used

- OpenAI GPT-5 Codex via Paperclip `codex_local` adapter, with
shell/git/GitHub CLI tool use.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>

ui/src/pages/Inbox.tsx

@@ -982,11 +982,23 @@ export function Inbox() {
   }, [executionWorkspaces]);
   const inboxWorkspaceGrouping = useMemo<InboxWorkspaceGroupingOptions>(
     () => ({
+      agentById,
       executionWorkspaceById,
       projectWorkspaceById,
       defaultProjectWorkspaceIdByProjectId,
+      projectById,
+      userLabelById: companyUserLabelMap,
+      currentUserId,
     }),
-    [defaultProjectWorkspaceIdByProjectId, executionWorkspaceById, projectWorkspaceById],
+    [
+      agentById,
+      companyUserLabelMap,
+      currentUserId,
+      defaultProjectWorkspaceIdByProjectId,
+      executionWorkspaceById,
+      projectById,
+      projectWorkspaceById,
+    ],
   );
   const visibleIssueColumnSet = useMemo(() => new Set(visibleIssueColumns), [visibleIssueColumns]);
   const availableIssueColumns = useMemo(
@@ -1990,6 +2002,8 @@ export function Inbox() {
                 {([
                   ["none", "None"],
                   ["type", "Type"],
+                  ["assignee", "Assignee"],
+                  ["project", "Project"],
                   ...(isolatedWorkspacesEnabled ? ([["workspace", "Workspace"]] as const) : []),
                 ] as const).map(([value, label]) => (
                   <button