feat(bot): allow chain configuration

[silent-cipher]

PR Includes -

• can set network to calibration or mainnet

[Copilot]

Pull Request Overview

This PR enables network configuration for the Filecoin dealbot, allowing it to operate on either calibration or mainnet networks instead of being hardcoded to calibration.

• Adds a configurable network field that accepts "calibration" or "mainnet" values
• Refactors configuration structure to use typed interfaces and removes default fallbacks
• Updates all network-dependent services to use the configured network dynamically

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/config/app.config.ts	Restructures configuration with typed interfaces and adds network parameter
src/wallet-sdk/wallet-sdk.service.ts	Updates to use dynamic network configuration for RPC URLs and contract addresses
src/scheduler/scheduler.service.ts	Refactors configuration access to use typed interfaces
src/retrieval/retrieval.service.ts	Updates CDN hostname selection based on network configuration
src/infrastructure/database/database.module.ts	Removes default fallbacks and uses typed configuration
src/deal/deal.service.ts	Updates RPC URL selection to use configured network
src/dataSource/dataSource.service.ts	Refactors to use typed configuration for dataset path
src/common/types.ts	Adds Network type definition
src/common/constants.ts	Changes CDN_HOSTNAME to network-keyed CDN_HOSTNAMES object
.env.example	Updates configuration examples and adds network parameter

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