Add priority sort and vote participation indicators to proposal lists

[Stanys-dev]

What this adds

Connected wallets see Voted / Not voted badges on active proposals, priority-based default sorting, and a highlighted row for proposals that still need your vote.

Why

DAO participants need to spot where action is required without scanning the full proposal list. This wires the data layer from #30 into the proposal list UI.

Changes

• components/proposal/ProposalFilter.tsx — Priority sort option with info tooltip
• components/proposal/proposal-list-item.tsx — vote badges and tier-0 row highlight (alongside archived badge)
• components/home/proposals-list.tsx — default priority-desc, batch vote reads, client re-sort, dim-while-loading
• components/home/recent-proposals.tsx — priority top-3 with vote badges
• components/ui/tooltip.tsx — sensible default delayDuration for filter tooltip
• lib/getWalletVoteStatusOnActive.ts — shared vote-status helper + unit tests

Scope

7 files. Proposal list UI only — no sidebar or home page wiring yet (PR4).

Note on stacking

Depends on #30. Until that merges, this diff includes its commits — review the "Add priority sort and vote participation indicators" commit here. Will rebase once #30 lands.

Verification

• Ran npm run test — 14 tests pass
• Ran npm run build — compiles cleanly

Test plan (for reviewer)

• npm run test passes
• npm run build / Vercel preview succeeds
• Connect wallet on Proposals tab — active rows show Voted / Not voted badges
• Priority sort is default; list re-orders after vote batch loads
• Active + not-voted rows have left border highlight
• Recent proposals on home tab show same badges (top 3 by priority)
• Archived proposals still show archived badge

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