feat(bitcoin): use shared baseconfig

[taran-a]

Explanation

Migrate the Bitcoin snap to the shared config provider pattern. This snap previously had no env validation — malformed values were used silently.

• src/config.ts rewritten: ConfigProvider extends BaseConfigProvider with parseEnv + structs; fromEnv helper and unchecked as casts removed.
• All env vars validated at startup: malformed URLs, unknown LOG_LEVEL, or unknown DEFAULT_ADDRESS_TYPE now fail startup.
• All previous defaults preserved (blockstream/mempool endpoints, p2wpkh); LOG_LEVEL default changes info → silent, matching the other snaps.
• Single configProvider instance consumed by index, logger, and the send-flow view.

References

• Related to WPN-1637

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

[taran-a]

@metamaskbot publish-preview

[github-actions]

Preview builds have been published. Learn how to use preview builds in other projects.

Expand for full list of packages and versions.

@metamask-previews/bitcoin-wallet-snap@3.0.0-preview-dd29022
@metamask-previews/snap-networks-utils@1.0.0-preview-dd29022
@metamask-previews/solana-wallet-snap@6.0.0-preview-dd29022
@metamask-previews/stellar-wallet-snap@1.0.0-preview-dd29022
@metamask-previews/tron-wallet-snap@3.2.0-preview-dd29022

[Battambang]

Quality Gate passed

Measures 0 Security Hotspots 94.4% Coverage on New Code 0.0% Duplication on New Code

See analysis details on SonarQube Cloud

May it worth to check if Sonar Coverage could reach the 100% with this file packages/bitcoin-wallet-snap/src/infra/jsx/send-flow/ReviewTransactionView.tsx

[Copilot]

🟡 Changes recommended

Consumer-facing changes need changelog entries, and the new address-type validation needs direct coverage.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

Migrates Bitcoin Snap configuration to shared validated configuration utilities.

Changes:

• Adds and exports a reusable defaulted URL struct.
• Validates Bitcoin Snap environment configuration at startup.
• Updates consumers, tests, and documented logging defaults.

File summaries

File	Description
packages/snap-networks-utils/src/utils/config/envStructs.ts	Adds defaulted URL validation.
packages/snap-networks-utils/src/utils/config/envStructs.test.ts	Tests URL parsing and defaults.
packages/snap-networks-utils/src/index.ts	Exports the new utility.
packages/bitcoin-wallet-snap/src/config.ts	Defines validated configuration.
packages/bitcoin-wallet-snap/src/config.test.ts	Tests configuration behavior.
packages/bitcoin-wallet-snap/src/index.ts	Uses the shared provider.
packages/bitcoin-wallet-snap/src/utils/logger.ts	Reads validated log configuration.
packages/bitcoin-wallet-snap/src/infra/jsx/send-flow/ReviewTransactionView.tsx	Reads confirmation configuration.
packages/bitcoin-wallet-snap/.env.example	Documents the new logging default.

Review details

• Files reviewed: 9/9 changed files
• Comments generated: 4
• Review effort level: Balanced

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
94.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[taran-a]

@metamaskbot publish-preview

[github-actions]

Preview builds have been published. Learn how to use preview builds in other projects.

Expand for full list of packages and versions.

@metamask-previews/bitcoin-wallet-snap@3.0.0-preview-abdf39b0
@metamask-previews/snap-networks-utils@1.0.0-preview-abdf39b0
@metamask-previews/solana-wallet-snap@6.0.0-preview-abdf39b0
@metamask-previews/stellar-wallet-snap@1.0.0-preview-abdf39b0
@metamask-previews/tron-wallet-snap@3.2.0-preview-abdf39b0