feat: replace ckb-transaction-dumper with ccc-based implementation (#…

[RetricSu]

…420)

• feat: replace ckb-transaction-dumper with ccc-based implementation

• Rewrite src/tools/ckb-tx-dumper.ts to use ccc Client and molecule codecs
• Implement dep_group unpacking using ccc.mol
• Remove ckb-transaction-dumper from dependencies
• Eliminates external npm dependency for transaction dumping

• chore: add changeset for ckb-transaction-dumper replacement

• fix: address PR review comments for ckb-tx-dumper

• Remove .sisyphus/boulder.json and add to .gitignore
• Fix type field serialization: emit null instead of undefined
• Fix dep_type format: convert camelCase to snake_case (depGroup -> dep_group)
• Fix depGroup error handling: throw error when refCell not found
• Fix async race condition: make buildTxFileOptionBy and callers async

• fix: fix CCC-based transaction dumper for debug command

• Use cccA.JsonRpcTransformers.transactionTo() to handle snake_case input format
• Convert all numeric values to hex format (since, index, version, capacity)
• Add missing dep_group cell to mock_info.cell_deps before expansion
• Add fs.mkdirSync to ensure output directory exists

Fixes issues where debug command failed with 'undefined is not iterable', 'unprovided cell dep', or 'since is not a legal u64' errors.

• fix: address Copilot PR review comments for ccc-based tx dumper

• Select ClientPublicTestnet/Mainnet based on RPC URL pattern
• Use proper error type checking with instanceof Error