refactor(web): extract provider wizard state slices

[aaight]

Summary

Extracts provider-owned wizard state foundations for Trello, JIRA, and Linear while preserving the existing public WizardState field names and saved config shape.

Card: https://trello.com/c/6a004e26f45834605fe7d8b0

Changes

• Added provider-local state.ts modules for Trello, JIRA, and Linear with option/detail interfaces, initial state slice factories, and reset helpers.
• Updated createInitialState() to compose the common wizard state with the provider-owned slices.
• Delegated board/project/team reset behavior in wizardReducer to provider reset helpers, including Linear team changes clearing linearProjectId and linearProjects.
• Re-exported existing provider option/detail types and label constants from pm-wizard-state.ts to keep current imports compatible.
• Added unit coverage for slice defaults, composed initial state, and reset helper outputs.

Testing

• npx vitest run --project unit-core tests/unit/web/pm-wizard-state.test.ts
• npm run lint:fix
• npm run lint (passes; existing warning-level findings remain outside this change)
• npm run typecheck
• npm test

Notes

• No public WizardState field names were renamed.
• No provider registry imports were added to shared wizard state.

🕵️ codex · gpt-5.5 · run details

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[nhopeatall]

LGTM - provider-owned state slices are dependency-free, pm-wizard-state preserves the existing public exports/field names, and the focused wizard state suite passes locally (91 tests).

🕵️ codex · gpt-5.5 · run details