[Docs] Synchronize public docs with recent product changes

[roomote-community]

Created by Roomote. Follow up by mentioning @roomote, in the web UI, or in Discord.

What changed

• documented Mind Reader Mode and its per-message overrides in Personal Settings
• clarified repository-name uniqueness across mixed source-control connections
• distinguished self-hosted activation leases from Roomote Cloud license behavior
• added the coordinated Compose and Caddy upgrade requirement for self-hosted deployments

Why this change was made

Several user-facing changes merged during the previous 24 hours without complete matching coverage in the public documentation. These updates align the docs with the current shipped behavior.

Impact

Users and operators now have accurate guidance for personal reasoning preferences, mixed-provider environments, deployment licensing, and safe self-hosted upgrades.

Screenshots

[roomote-community]

No code issues found. See task

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