feat: governance dashboard integration


**Description**
Show proposals in UI.

**Problem Statement**
Governance hidden.

**Technical Requirements**
- [ ] Proposal widget.

**Implementation Guide**
- **Suggested Approach:** Fetch/render votes.
- **Affected Areas:** src/

**Acceptance Criteria**
- [ ] UI sync with chain.

**Security & Audit Considerations**
- [ ] None.

**Definition of Done**
- [ ] UX verified.