Optimize assignment loading and add native draft sharing

[Noelithub77]

Assignment details now render after the view-page request while submission options load separately through a deduplicated edit-session request. This removes repeated session probes and edit-page fetches. The header shows the assignment title once, batch upload progress stays within 0–100%, and Open LMS always opens the assignment view page.

Native image/PDF sharing opens a deadline-ordered assignment picker. Selecting an assignment uploads files to a temporary Moodle draft; a separate Submit button saves that same draft and preserves existing online text. Pending shares survive login, and interrupted uploads can be cancelled.

The native share module requires a new build. Runtime 1.4.1-share-intent-v1 isolates it from existing 1.4.1 OTA clients; package version remains unchanged. Build and device verification notes are in docs/native-assignment-sharing.md.

Validation:

• All 32 unit tests passed, including draft-only upload, explicit submission, request deduplication, progress bounds, and deadline ordering.
• Lint and diff checks passed.
• Android prebuild, native configuration introspection, and Android/web bundle exports passed.
• Full TypeScript checking reports an existing backgroundImage typing error in the unchanged web gradient component.
• Native device and real-LMS verification remains pending.

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📥 Commits

Reviewing files that changed from the base of the PR and between 7f814bc and 7d4f52b.

⛔ Files ignored due to path filters (1)

• bun.lock is excluded by !**/*.lock

📒 Files selected for processing (17)

• app.config.ts
• docs/native-assignment-sharing.md
• package.json
• src/app/+native-intent.tsx
• src/app/_layout.tsx
• src/app/course/[courseid]/assignment/[assignmentid].tsx
• src/app/share-assignment.tsx
• src/hooks/use-assignment-share-intent.ts
• src/services/assignment.ts
• src/stores/assignment-share-store.ts
• src/stores/assignment-store.ts
• src/stores/auth-store.ts
• src/types/assignment.ts
• src/utils/assignment-share.ts
• src/utils/upload-progress.ts
• tests/unit/services/assignment.test.ts
• tests/unit/utils/assignment-share.test.ts

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Revalidate before rejecting an assignment

When a cached assignment entry is less than 30 minutes old, fetchAssignmentDetails() returns without making a request. If that entry was fetched before the assignment opened and has canEditSubmission: false, this check rejects the selection before the forced edit-session request on the next line can verify its current state. The share flow therefore remains unusable for the newly opened assignment until the cache expires or is refreshed elsewhere; force-refresh the details here or let the forced edit request be the source of truth.

Useful? React with 👍 / 👎.

[chatgpt-codex-connector]

Move the shared target type into the central type module

SharedAssignmentTarget is imported directly from a utility module instead of being defined under src/types and re-exported through @/types. Move the interface to the assignment type module and import it from the central index to preserve the repository's required type boundary.

AGENTS.md reference: AGENTS.md:L215-L215

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