[LWDM] refactor(desktop): remove vault transport support

[OlivierFreyssinet]

✅ Checklist

• npx changeset was attached.
• Covered by automatic tests.
• Impact of the changes:
  • Ledger Wallet Desktop transport registration and normal USB / DMK / Speculos / proxy selection paths
  • Experimental settings and top banner surfaces where Vault Signer used to appear
  • Persisted/e2e userdata that used to carry the obsolete vaultSigner setting

📝 Description

Vault Signer has been decommissioned and no longer needs a legacy LedgerJS transport in Ledger Wallet. This PR removes the @ledgerhq/hw-transport-vault workspace package and disconnects the desktop app from the Vault Signer flow.

The cleanup removes the desktop Vault transport module registration, pseudo-device selection path, settings state/action/selector, modal, banner, experimental settings row, package dependency, lockfile entries, and obsolete English copy. Non-English wording cleanup is intentionally left to the automated localization removal flow.

❓ Context

• JIRA or GitHub link: ledger-live#3287, ledger-live#3523
• ADR link (if any): N/A

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🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.
• Performance considerations have been taken into account. (changes have been profiled or benchmarked if necessary)

[github-actions]

Web Tools Build Status

Build	Status	Deployment
Web Tools Build	✅ Deployed	https://web-tools-7qua6iudm-ledger-hq-prd.vercel.app
Native Storybook Build	✅ Deployed	https://native-ui-storybook-lwq99ft5e-ledger-hq-prd.vercel.app
React Storybook Build	✅ Deployed	https://react-ui-storybook-qv8omhia6-ledger-hq-prd.vercel.app

[github-actions]

Rsdoctor Bundle Diff Analysis

Found 7 projects in monorepo, 7 projects with changes.

📊 Quick Summary

Project	Total Size	Change
desktop-main	2.6 MB	-
desktop-preloader	7.1 KB	-
desktop-renderer	81.2 MB	-
desktop-webviewDappPreloader	0 B	-
desktop-webviewPreloader	0 B	-
desktop-workers	36.8 KB	-
mobile	257.0 MB	-

📋 Detailed Reports (Click to expand)

📁 desktop-main

Path: rsdoctor/desktop-main/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	2.6 MB	-	-
📄 JavaScript	2.4 MB	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	135.3 KB	-	-

📁 desktop-preloader

Path: rsdoctor/desktop-preloader/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	7.1 KB	-	-
📄 JavaScript	5.3 KB	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	1.8 KB	-	-

📁 desktop-renderer

Path: rsdoctor/desktop-renderer/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	81.2 MB	-	-
📄 JavaScript	28.9 MB	-	-
🎨 CSS	172.5 KB	-	-
🌐 HTML	1.8 KB	-	-
📁 Other Assets	52.2 MB	-	-

📁 desktop-webviewDappPreloader

Path: rsdoctor/desktop-webviewDappPreloader/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	0 B	-	-
📄 JavaScript	0 B	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	0 B	-	-

📁 desktop-webviewPreloader

Path: rsdoctor/desktop-webviewPreloader/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	0 B	-	-
📄 JavaScript	0 B	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	0 B	-	-

📁 desktop-workers

Path: rsdoctor/desktop-workers/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	36.8 KB	-	-
📄 JavaScript	36.8 KB	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	0 B	-	-

📁 mobile

Path: rsdoctor/mobile/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	257.0 MB	-	-
📄 JavaScript	107.9 MB	-	-
🎨 CSS	0 B	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	149.1 MB	-	-

Generated by Rsdoctor GitHub Action

[sonarqubecloud]

Quality Gate failed

Failed conditions
3 New Code Smells (required ≤ 1)

See analysis details on SonarQube Cloud

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