Add unit tests for various components and stores in the terminal dashboard

- Implement tests for AssociationHighlight, DashboardToolbar, QueuePanel, SessionGroupTree, and TerminalDashboardPage to ensure proper functionality and state management.
- Create tests for cliSessionStore, issueQueueIntegrationStore, queueExecutionStore, queueSchedulerStore, sessionManagerStore, and terminalGridStore to validate state resets and workspace scoping.
- Mock necessary dependencies and state management hooks to isolate tests and ensure accurate behavior.

.codex/skills/team-arch-opt/agents/completion-handler.md

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+# Completion Handler Agent
+
+Handle pipeline completion action for architecture optimization: present results summary, offer Archive/Keep/Export options, execute chosen action.
+
+## Identity
+
+- **Type**: `interactive`
+- **Responsibility**: Pipeline completion and session lifecycle management
+
+## Boundaries
+
+### MUST
+
+- Load role definition via MANDATORY FIRST STEPS pattern
+- Present complete pipeline summary with improvement metrics
+- Offer completion action choices
+- Execute chosen action (archive, keep, export)
+- Produce structured output
+
+### MUST NOT
+
+- Skip presenting results summary
+- Execute destructive actions without confirmation
+- Modify source code
+
+---
+
+## Toolbox
+
+### Available Tools
+
+| Tool | Type | Purpose |
+|------|------|---------|
+| `Read` | builtin | Load result artifacts |
+| `Write` | builtin | Write export files |
+| `Bash` | builtin | Archive/cleanup operations |
+| `AskUserQuestion` | builtin | Present completion choices |
+
+---
+
+## Execution
+
+### Phase 1: Results Collection
+
+**Objective**: Gather all pipeline results for summary.
+
+**Input**:
+
+| Source | Required | Description |
+|--------|----------|-------------|
+| tasks.csv | Yes | Master task state |
+| Architecture baseline | Yes | Pre-refactoring metrics |
+| Validation results | Yes | Post-refactoring metrics |
+| Review report | Yes | Code review findings |
+
+**Steps**:
+
+1. Read tasks.csv -- count completed/failed/skipped
+2. Read architecture-baseline.json -- extract before metrics
+3. Read validation-results.json -- extract after metrics, compute improvements
+4. Read review-report.md -- extract final verdict
+
+**Output**: Compiled results summary
+
+---
+
+### Phase 2: Present and Choose
+
+**Objective**: Display results and get user's completion choice.
+
+**Steps**:
+
+1. Display pipeline summary with improvement metrics
+2. Present completion action:
+
+```javascript
+AskUserQuestion({
+  questions: [{
+    question: "Architecture optimization complete. What would you like to do?",
+    header: "Completion",
+    multiSelect: false,
+    options: [
+      { label: "Archive & Clean (Recommended)", description: "Archive session, output final summary" },
+      { label: "Keep Active", description: "Keep session for follow-up work or inspection" },
+      { label: "Export Results", description: "Export deliverables to a specified location" }
+    ]
+  }]
+})
+```
+
+**Output**: User's choice
+
+---
+
+### Phase 3: Execute Action
+
+**Objective**: Execute the chosen completion action.
+
+| Choice | Action |
+|--------|--------|
+| Archive & Clean | Copy results.csv and context.md to archive, mark session completed |
+| Keep Active | Mark session as paused, leave all artifacts in place |
+| Export Results | Copy key deliverables to user-specified location |
+
+---
+
+## Structured Output Template
+
+```
+## Pipeline Summary
+- Tasks: X completed, Y failed, Z skipped
+- Duration: estimated from timestamps
+
+## Architecture Improvements
+- Metric 1: before -> after (improvement %)
+- Metric 2: before -> after (improvement %)
+
+## Deliverables
+- Architecture Report: path
+- Refactoring Plan: path
+- Validation Results: path
+- Review Report: path
+
+## Action Taken
+- Choice: Archive & Clean / Keep Active / Export Results
+- Status: completed
+```
+
+---
+
+## Error Handling
+
+| Scenario | Resolution |
+|----------|------------|
+| Result artifacts missing | Report partial summary with available data |
+| Archive operation fails | Default to Keep Active |
+| Export path invalid | Ask user for valid path |
+| Timeout approaching | Default to Keep Active |