🎨 Palette: Prevent ghost interactions when system is offline

[teerthsharma]

💡 What: Extracted tunnelStatus from the useApeiron hook and used it to disable the chat input and submit buttons when the connection is offline. Added dynamic placeholders and tooltips to explain the offline state to the user.
🎯 Why: To prevent "ghost interactions" where a user attempts to type and send messages to a distributed system that is currently disconnected, which leads to confusion and messages seemingly vanishing into the void.
📸 Before/After: Before, the input was active even while waiting for the background Sanctuary DSP bus to connect. Now, the input is grayed out with a clear "Waiting for connection to system..." placeholder until the connection is established.
♿ Accessibility: Added dynamic aria-label attributes to the input and button to narrate the offline state to screen readers, and dynamic title tooltips for hover contexts.
🎨 Persona: Palette

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PR created automatically by Jules for task 4626811150934828178 started by @teerthsharma

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