Brand own space as Nova chats

[Dhravya]

Renames the user-owned conversation space from "Your conversations" to "Nova chats".
Uses the existing Nova orb logo for that own-space entry in the space selector trigger, modal list, and delete target selector.

Testing: bunx biome check apps/web/lib/ingest-auto-space.ts apps/web/components/space-selector.tsx apps/web/components/select-spaces-modal.tsx

[claude]

Claude finished @Dhravya's task in 2m 15s —— View job

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Reviewed PR #957: Brand own space as Nova chats

• Fetch and analyze the diff
• Review changed files for bugs/security issues
• Check for existing review comments
• Submit review

Overview: Renames the user's own conversation space to "Nova chats" and displays the NovaOrb icon instead of the default emoji.

Issues found: None — this looks good to ship.

Verified:

• isOwnConversationSpace logic correctly matches containerTag === userId
• All imports added properly (NovaOrb, isOwnConversationSpace)
• useMemo dependency array includes user?.id as required
• No hardcoded "Your conversations" strings remaining in codebase
• Biome check passes

Score: 10/10

[claude]

Overview: Renames the user's own conversation space to "Nova chats" and displays the NovaOrb icon instead of the default emoji.

Issues found: None — this looks good to ship.

Verified:

• isOwnConversationSpace logic correctly matches containerTag === userId
• All imports added properly (NovaOrb, isOwnConversationSpace)
• useMemo dependency array includes user?.id as required
• No hardcoded "Your conversations" strings remaining in codebase
• Renamed constant OWN_CHAT_SPACE_NAME is only used internally
• Biome check passes

Score: 10/10