chore(release): v0.49.1

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This PR was triggered by the publication: Docs

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Dingo documentation

• Fully updates the Dingo quick start guide with step-by-step instructions for downloading the binary, configuring the database and network settings
• Provides detailed configuration file examples and explanations for database paths, storage modes, and network ports
• Includes instructions for opening firewall ports needed for node communication
• Elaborates on bootstrapping the node with a Mithril snapshot to speed up synchronization
• Describes the process to start the Dingo node and suggests using a systemd service for uptime
• Links to further Dingo usage instructions and startup service guides

Release notes

• Adds a detailed release notes page for Dingo version 0.49.1 documenting new database reliability fixes, cancellable chain iterators, and SQL-focused database guidance
• Highlights improvements such as updated dependency versions and enhanced release history documentation
• Details several critical fixes related to chain iteration cancellation, network and database state consistency, Postgres data preservation, and transaction recovery
• Specifies network compatibility status for mainnet, preprod-testnet, and preview-testnet
• Updates the Dingo release index page to include the new v0.49.1 release with links to its detailed notes
• Refines release notes content to clarify database guidance alignment with SQL workflows and improves phrasing of fixes and improvements
• Expands database guide content to better map SQL data store behavior and operation workflows
• Introduces new DingoSwap example showcasing Preview network swap capabilities with browser wallet integration
• Adds merged Leios chain data serving for enhanced client application access
• Improves reward state persistence and governance vote handling under CIP 1694
• Moves Dingo builds to Go 1.25 with updated build tooling
• Fixes transaction submission error clarity and stabilizes chain sync failure reporting
• Enhances pruning of header tracking during node sync for increased stability
• Updates quick start guide with expanded and clarified database configuration instructions including warnings about network-specific database use and cache settings
• Adds detailed step instructions for opening necessary firewall ports and bootstrapping with Mithril snapshot to speed up sync
• Provides example commands for starting Dingo and references service startup guide for improved uptime
• Further clarifies and polishes release notes for v0.49.1 to improve wording consistency and reflect smoother operation and tooling updates
• Corrects multiple duplicate entries and clarifies release note phrasing across files related to v0.49.1 documentation
• Adds step-by-step guidance in the quick start guide covering firewall setup and database parameter recommendations to optimize Dingo node setup and operation
• Consolidates and refines release notes multiple times to enhance clarity regarding new features, improvements, and fixes including chain iteration, database network alignment, Postgres epoch summary reliability and gap transaction output handling
• Introduces detailed release notes on DingoSwap example and Leios data serving enhancements, plus reward state improvements and governance voting rules application
• Polishes and harmonizes release notes text and updates release index links, despite some duplication issues in release listings
• Removes duplicate or redundant entries in release notes index and release page links to clean up display and maintain accuracy

This covers 16 commits.

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