[Ogstevyn]

Summary

• Adds a Vitest benchmark suite (ide/src/test/benchmarks/xdr.bench.ts) covering XDR decode throughput, transformLedgerEntry, filterByKeyType, searchEntries, and state-diff operations across 100-and 1000-entry payloads (closes [Testing] Benchmarks for XDR Parsing Logic #842)
• Introduces ide/src/lib/test/FuzzingEngine.ts — a SorobanValueGenerator that produces randomised values (with targeted edge cases) for every Soroban primitive and compound type, plus a FuzzingEngine orchestrator that runs N iterations against a pluggable simulate function and reports panics and errors (closes [Testing] Fuzzing Engine for Contract Invocations #845)
• Adds frontend/src/components/sharing/ConnectionTelemetry.tsx, a self-contained React component that manages a WebSocket connection, measures round-trip latency via ping/pong, tracks peer count, and renders a micro-animated telemetry bar with a degraded/disconnected warning overlay (closes [Frontend] Live Sharing Connection Telemetry Status #888)
• Introduces extension/src/services/EventMonitor.ts, a VS Code service that polls the Soroban RPC getEvents endpoint on a configurable interval, writes formatted event logs (type, ledger, contract ID, topic, value preview) to a dedicated "Stellar Kit — Contract Events" output channel, and supports live filter updates by contract ID or event type (closes [Extension] VS Code View for Contract Events #874)

Test plan

• Run cd ide && npx vitest bench --run and confirm all benchmark groups pass with numeric output
• Instantiate FuzzingEngine with a mock simulate function and call run(), verify the returned FuzzReport contains panics and errors arrays
• Render <ConnectionTelemetry /> in the frontend dev server — confirm the telemetry bar mounts, the pulsing indicator is visible, and the warning overlay appears when wsUrl is omitted
• In the extension, call new EventMonitor(rpcUrl).start() and confirm the "Stellar Kit — Contract Events" output channel opens and begins logging

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