Step-aware wizard video tutorial section

[j-chmielewski]

Closes #1866.

• Makes video tutorial section in wizards step-aware
• Adds video tutorial section to initial setup and auto-adoption wizards

[Copilot]

Pull request overview

Updates the web video tutorial “wizard sidebar” feature to support step-specific guides and extends it to the initial setup and auto-adoption wizards, backed by a lightweight /api/v1/version endpoint in the setup/migration webapps.

Changes:

• Introduce step-aware wizard placements (default + steps) in the video tutorials mapping/types/schema and update resolver logic accordingly.
• Add wizard video guide placement keys for initial setup and auto-adoption flows; pass the active step key into placement resolution.
• Add /api/v1/version endpoint in defguard_setup and a corresponding frontend query option.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
web/tests/video-tutorials.test.ts	Updates/extends tests for step-aware placement resolution and parsing.
web/src/shared/video-tutorials/types.ts	Changes placements type to VideoGuidePlacementGroup (default + steps).
web/src/shared/video-tutorials/resolver.ts	Adds step-aware placement resolution logic.
web/src/shared/video-tutorials/resolved.tsx	Uses /version query for wizard placement resolution.
web/src/shared/video-tutorials/data.ts	Updates Zod schema to parse step-aware placement groups.
web/src/shared/video-tutorials/README.md	Documents new placement structure, keys, and fallback order.
web/src/shared/query.ts	Adds getVersionQueryOptions.
web/src/shared/components/wizard/WizardVideoGuide/WizardVideoGuide.tsx	Adds spacing in the wizard video guide UI.
web/src/shared/components/wizard/WizardPage/WizardPage.tsx	Passes active step ID to placement resolution hook.
web/src/shared/api/types.ts	Adds VersionResponse type.
web/src/shared/api/api.ts	Adds api.app.version() and removes unused top-level info.
web/src/routes/_wizard/migration/index.tsx	Removes AppInfo/AppUser providers wrapper for migration wizard route.
web/src/pages/SetupPage/initial/SetupPage.tsx	Sets videoGuidePlacementKey="initialSetupWizard".
web/src/pages/SetupPage/autoAdoption/AutoAdoptionSetupPage.tsx	Sets videoGuidePlacementKey="autoAdoptionWizard".
crates/defguard_setup/src/setup_server.rs	Adds /api/v1/version route.
crates/defguard_setup/src/migration.rs	Adds /api/v1/version route and removes /info + /me routes.
crates/defguard_setup/src/handlers/version.rs	Implements GET /version handler returning { version }.
crates/defguard_setup/src/handlers/mod.rs	Exposes the new version handler module.

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