v0.1.49

i18n / Internationalization

• VaultPanel: all hardcoded Korean → i18n (8 languages)
• SkillsPanel (Skills Studio): all hardcoded Korean → i18n (8 languages)
• DebateModal + debateEngine: all hardcoded Korean → i18n (8 languages)
• EditorPanel MD toolbar buttons i18n
• FileTreeItem context menu i18n
• XTerminal button titles i18n

UI / UX

• Editor & Terminal: independent Eye/EyeOff collapse — hides panel without affecting file tree
• Restore bar with Eye icon appears when panel is collapsed
• Graph View button moved to top toolbar (before Settings icon)
• Sidebar collapse arrow bar in file tree header
• Video player: simple HTML5 <video> player (replaces removed editor)
• Audio player: HTML5 <audio> player with music note icon
• Undo button restored with Undo2 icon (instead of RefreshCcw)

Menu cleanup

• Removed Voice Settings (already in Settings panel)
• Removed AI Note Generator (redundant)
• Removed Linear Sync
• Removed duplicate Graph View entry
• Notes renamed to "Simple Note"

Settings

• Added Open Source Licenses tab

Fixes

• OpenCode terminal PATH fix (~/.opencode/bin)
• Removed "LATEST" status text from version badge
• Dead code cleanup (Linear sync, unused imports)