Add interlinearizer project storage and createProject command

[alex-rawlings-yyc]

---

This change is 

Summary by CodeRabbit

• New Features

  • Interlinear project UX: create, select, view/edit metadata, delete; persisted active project across tabs; project-related top‑menu actions and modals; continuous‑scroll toggle and improved WebView state handling.

• Bug Fixes / Reliability

  • Safer project storage with serialized writes, concurrency protection, clearer error handling and user notifications.

• Tests

  • Expanded test coverage for storage, commands, modals, loader, parsers, UI flows and failure cases.

• Documentation

  • Updated localized UI strings and expanded architecture/usage guidance.

[coderabbitai]

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📝 Walkthrough

Walkthrough

Adds project persistence with serialized queues, new JSON-RPC project commands, modal UIs plus a ProjectModals coordinator persisted in WebView state, type/model updates (Token.ref, link-based analysis), expanded mocks/Jest config, Tailwind modal utilities, and extensive tests.

Changes

Interlinearizer project storage, host commands, types, UI, mocks, and tests

Layer / File(s)	Summary
Public types & data-model src/types/interlinearizer.d.ts	Redefines analysis/project model: adds InterlinearProject, Token.ref, TokenSnapshot/MorphemeLink, link-based TextAnalysis arrays, and interlinearizer.createProject handler type.
Storage service + concurrency src/services/projectStorage.ts	New persistence layer with per-index and per-project serialized queues, create/get/list/getProjectsForSource/updateProjectMetadata/deleteProject, ENOENT handling, rollback on index failures, and resetQueuesForTesting.
Host command implementations & registration src/main.ts	Captures executionToken during activate(), implements JSON-RPC commands delegating to projectStorage (createProject, getProjectsForSource, updateProjectMetadata, deleteProject), registers modal no-op commands, and stores disposables.
Modal components & coordinator src/components/SelectInterlinearProjectModal.tsx, src/components/CreateProjectModal.tsx, src/components/ProjectMetadataModal.tsx, src/components/ProjectModals.tsx	Modal UIs fetch/dispatch host commands, validate/parse JSON, guard duplicate submissions, persist/merge activeProject in WebView state, and coordinate create/select/metadata flows.
Loader & web-view wiring src/components/InterlinearizerLoader.tsx, src/interlinearizer.web-view.tsx	Loader accepts useWebViewState, persists activeProject, filters menu items (hiding View Info when no active project), routes toolbar commands to modals; web-view forwards useWebViewState.
Token identity & tokenizer updates src/parsers/papi/bookTokenizer.ts, src/components/*, src/__tests__/*	Token identity moved id→ref across tokenizer, components, and tests; rendering keys updated to use token.ref.
Mocks & Jest config __mocks__/papi-backend.ts, __mocks__/papi-frontend.ts, __mocks__/papi-frontend-react.ts, __mocks__/lucide-react.tsx, __mocks__/platform-bible-*.tsx, jest.config.ts	Expanded backend mock to expose storage.readUserData/writeUserData/deleteUserData and notifications.send (plus __mock* handles), added frontend minimal papi + useData hook mock, lucide-react icon mock, and restoreMocks:true + moduleNameMapper entry.
Modal & coordinator tests src/__tests__/components/*Modal.test.tsx, src/__tests__/components/ProjectModals.test.tsx, src/__tests__/components/InterlinearizerLoader.test.tsx	Extensive RTL suites validating rendering, input parsing, command dispatch, success/failure paths, notifications, anti-double-submit, activeProject persistence, and modal navigation.
Storage tests src/__tests__/services/projectStorage.test.ts	Comprehensive unit tests for create/get/list/update/delete, index maintenance, rollback semantics, concurrency serialization, and error propagation.
Localization, menus, styling, docs contributions/localizedStrings.json, contributions/menus.json, src/tailwind.css, AGENTS.md	Adds interlinearizer UI strings and menu topMenu entries for project actions, Tailwind modal utilities, and updated architecture/testing documentation.

Sequence Diagram (high-level)

sequenceDiagram
  participant WebView as WebView UI
  participant Loader as InterlinearizerLoader
  participant Host as Extension Host (main.ts)
  participant Storage as projectStorage
  participant Backend as `@papi/backend`
  WebView->>Loader: open/select/create project
  Loader->>Host: sendCommand('interlinearizer.getProjectsForSource', sourceId)
  Host->>Storage: getProjectsForSource(token, sourceId)
  Storage->>Backend: storage.readUserData(key)
  Backend-->>Storage: project JSON / ENOENT
  Storage-->>Host: projects JSON
  Host-->>Loader: JSON string result
  Loader->>WebView: render list
  WebView->>Loader: createProject -> sendCommand('interlinearizer.createProject', args)
  Loader->>Host: sendCommand('interlinearizer.createProject', args)
  Host->>Storage: createProject(token, ...)
  Storage->>Backend: storage.writeUserData(projectKey, JSON)
  Storage->>Backend: storage.readUserData(indexKey) & storage.writeUserData(indexKey)
  Backend-->>Storage: success / error
  Storage-->>Host: created project
  Host-->>Loader: JSON string (or undefined)
  Loader->>WebView: update UI, persist activeProject via useWebViewState

Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

Possibly related PRs

• sillsdev/interlinearizer-extension#62: Overlapping modal refactor and loader delegation into ProjectModals.
• sillsdev/interlinearizer-extension#74: Touches modal markup and Tailwind modal utilities used here.
• sillsdev/interlinearizer-extension#29: Related changes to mainWebViewProvider.getWebView test expectations/signature.

Suggested labels

🟥High

Suggested reviewers

• imnasnainaec
• jasonleenaylor

Poem

"🐰 I hopped through files and seeded queues today,
saved projects safe so none would run astray,
mocks snug as carrots, tests snug in a row,
refs now steady where old ids used to go,
rejoice — the modals open, ready to play."

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch create-interlinearizer-project