Build FlowMemory Dashboard V0

[FlowmemoryAI]

Summary

• Builds a fixture-backed Vite/React/TypeScript FlowMemory Dashboard V0 under apps/dashboard/.
• Adds app-facing dashboard fixtures for FlowPulse observations, Rootfield state, work lanes/receipts, verifier reports, devnet blocks, hardware nodes, and alerts.
• Adds dashboard docs covering run commands, fixture boundaries, and the future generated-output path.

Scope note

Issue #19 was originally spec-only. Per the 2026-05-13 Codex goal, this PR expands that issue into a real local dashboard implementation while preserving the fixture/local data boundary and avoiding contracts/services/hardware changes.

Checks

• npm install in apps/dashboard/
• npm run typecheck
• npm test
• npm audit --audit-level=moderate
• npm run build
• Chrome headless screenshots at 1440px overview and 1024px verifier route
• Chrome DOM render check for /, /#/verifier, /#/hardware, and /#/raw

Risks and follow-ups

• Runtime data is intentionally fixture-backed; no live API or production freshness guarantees are implied.
• The canonical fixture and public runtime copy are duplicated for local Vite loading; npm run sync:fixtures keeps them aligned.
• Future generated indexer/verifier/devnet/hardware outputs should land in fixtures/dashboard/generated/ before replacing or feeding the dashboard fixture.

[FlowmemoryAI]

Launch-core direction: please align this dashboard PR with issue #66 and docs/V0_LAUNCH_ACCEPTANCE.md. Dashboard-side completion should render fixture-backed Rootfield, Rootflow transition, MemorySignal, MemoryReceipt, verifier report, and AgentMemoryView state.

[FlowmemoryAI]

Acceptance audit follow-up: please make the PR summary identify which views render Rootfield, Rootflow transition, MemorySignal, MemoryReceipt, verifier report, and AgentMemoryView state, plus local build/test or screenshot evidence. The required evidence is tracked in docs/reviews/ROOTFLOW_FLOW_MEMORY_V0_ACCEPTANCE_AUDIT.md on PR #59.