Tune Myspace aliases and Hangout empty state

[SahilKumar75]

Summary

• Expand Myspace retrieval aliases for student search terms around notes, assignments, labs, lectures, screenshots, timetable, and subject shortcuts.
• Replace the Hangout no-room copy with an action-oriented empty state.
• Add direct create/join actions to the empty Hangout panel.

Testing

• Parsed app/src/features/myspace/retrieval-engine.js and app/src/screens/HangoutScreen.jsx with Babel parser.
• cd app && npx expo export --platform web --output-dir /private/tmp/sentri-resolve-107-108-web
• git diff --check

Closes #107
Closes #108

Summary by CodeRabbit

Release Notes

• Improvements
  • Enhanced search result relevance through expanded topic and context recognition.
  • Updated empty hangout lobby state with clearer messaging ("No active hangouts") and quick action buttons to create or join rooms.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 9f8b50f0-3451-4789-ad2e-013a7cdfb36e

📥 Commits

Reviewing files that changed from the base of the PR and between 7e1203d and d901da9.

📒 Files selected for processing (2)

• app/src/features/myspace/retrieval-engine.js
• app/src/screens/HangoutScreen.jsx

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📝 Walkthrough

Walkthrough

This PR addresses two independent feature areas: expanded semantic aliases for student search intent in the retrieval engine, and an improved empty state UI for the hangout lobby with action buttons and icon styling.

Changes

Search Alias Tuning

Layer / File(s)	Summary
Subject and context alias expansion app/src/features/myspace/retrieval-engine.js	SUBJECT_ALIASES expanded with broader DBMS, OS, CG, and PM vocabulary. CONTEXT_ALIASES expanded with new roots (assignment, lab, lecture, notes, timetable) and broadened existing term lists to increase search recall on student language.

Hangout Empty State UI

Layer / File(s)	Summary
Empty state content and layout app/src/screens/HangoutScreen.jsx (lines 509–525)	Replaced "No rooms yet" message with videocam icon, "No active hangouts" title, updated body text, and two-button action grid for creating a room or joining by code.
Empty state icon and action button styles app/src/screens/HangoutScreen.jsx (lines 1150–1158, 1170–1199)	Added emptyRoomsIcon, emptyActionGrid, emptyActionButton, emptyActionButtonGhost, and text styles to render the new empty state layout with primary and ghost button variants.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• SahilKumar75/sentri#13: Updates Hangout lobby UI components and empty-state messaging in HangoutScreen.

Poem

🐰 With aliases broad and hangouts bright,
We expand the search and polish the sight—
Students find notes, labs, assignments with ease,
While empty states now charm and please!
A retrieval leap and a UI delight! ✨

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/resolve-myspace-hangout-issues

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[SahilKumar75]

Review pass: the Myspace retrieval change keeps ranking deterministic and broadens recall through explicit alias maps rather than fuzzy hidden behavior. The Hangout empty state now gives clear create/join actions while staying inside the existing screen layout and design tokens.