feat: add Cosmos, Maya, and Tron chain support for tx_indexer

[jpthor]

Adds transaction indexing and status checking for Cosmos, MayaChain, and TRON.

New chain indexers:

• pkg/chain/cosmos.go, maya.go, tron.go

New RPC clients:

• pkg/rpc/cosmos.go, maya.go, tron.go

Updated:

• chains_list.go - Register new chains
• config.go - Add RPC config entries

Part of other-chains integration. Depends on: recipes#other-chains

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📥 Commits

Reviewing files that changed from the base of the PR and between 12b457f and 2bc61b0.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (12)

• .run/CHEATSHEET.md
• deploy/01_tx_indexer.yaml
• deploy/dev/01_rpc.yaml
• go.mod
• plugin/tx_indexer/chains_list.go
• plugin/tx_indexer/pkg/chain/cosmos.go
• plugin/tx_indexer/pkg/chain/maya.go
• plugin/tx_indexer/pkg/chain/tron.go
• plugin/tx_indexer/pkg/config/config.go
• plugin/tx_indexer/pkg/rpc/cosmos.go
• plugin/tx_indexer/pkg/rpc/maya.go
• plugin/tx_indexer/pkg/rpc/tron.go

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch other-chains

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[webpiratt]

Please add new config values in deploy/dev/01_rpc.yaml and deploy/01_tx_indexer.yaml (Dev env). For a Prod env ask @RaghavSood to update config with new rpcs