Add tx analysis#5
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Wraps analyzeTx from @openscan/utils as a LangChain tool so agents can fetch call trees, prestate/poststate diffs, and contract metadata for a given tx hash. Exposes CLI-flag parity (includePrestate, includeRawTrace, skipCallTree, skipContracts, etherscanKey) as Zod fields. Tool description follows a 3-sentence what/when/when-NOT structure to disambiguate from get_transaction_history and warn about trace-enabled RPC requirements — top-level description is load-bearing because some LangChain provider adapters drop Zod .describe() text (langchainjs#9099).
…tion - get_transaction_history: expand description with "use when" + "do NOT use" guidance pointing to get_transaction_analysis for single-tx analysis, preventing the mirror-image misrouting between the two tools. - address fields (txHistory, tokenBalance, addressType): add 42-char 0x-prefixed format hint with a concrete example so the LLM formats arguments correctly without hallucinating.
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Add support for tx analysis