fix(multi-cli): complete solution details display in summary tab (#98)

Fixed issue where multi-CLI planning solution cards only showed count,
feasibility, effort, and risk badges but had empty content area.

Changes:
- Enhanced renderMultiCliSummaryContent() to extract and display all solution fields
  - Solution name (name/title)
  - Feasibility score (feasibility)
  - Effort level (effort)
  - Risk level (risk)
  - Summary/description (summary)
  - Pros list (pros)
  - Cons list (cons)

- Added CSS styles for solution cards
  - .solution-details, .details-label, .details-list
  - .solution-header, .solution-title-row, .solution-badges
  - .badge with variants for feasibility/effort/risk

- Fixed related issues:
  - Added multiCliPlan support to backend data structures
  - Exposed liteTaskDataStore to window for global access
  - Fixed header left-alignment in detail pages
  - Added 'active' class to tab content for visibility

Files modified:
- ccw/src/templates/dashboard-js/views/lite-tasks.js
- ccw/src/templates/dashboard-css/04-lite-tasks.css
- ccw/src/core/server.ts
- ccw/src/core/routes/system-routes.ts
- ccw/src/templates/dashboard-js/state.js
- ccw/src/templates/dashboard-css/02-session.css
- ccw/src/config/litellm-api-config-manager.ts (fix homedir import)

Closes #98

ccw/src/core/routes/system-routes.ts

@@ -145,7 +145,7 @@ async function getWorkflowData(projectPath: string): Promise<any> {
       generatedAt: new Date().toISOString(),
       activeSessions: [],
       archivedSessions: [],
-      liteTasks: { litePlan: [], liteFix: [] },
+      liteTasks: { litePlan: [], liteFix: [], multiCliPlan: [] },
       reviewData: { dimensions: {} },
       projectOverview: null,
       statistics: {
@@ -155,7 +155,8 @@ async function getWorkflowData(projectPath: string): Promise<any> {
         completedTasks: 0,
         reviewFindings: 0,
         litePlanCount: 0,
-        liteFixCount: 0
+        liteFixCount: 0,
+        multiCliPlanCount: 0
       },
       projectPath: normalizePathForDisplay(resolvedPath),
       recentPaths: getRecentPaths()