project finalizing, openrouter embeddings

frontend file browsers, css colors, litellm update, reqs split

projects continued

refactor: modals styles cleanup and subdirectories

history/context/image modals components

refactor: file-browser component

Squashed commit of the following:

speech chunking fix

bugfixes and cleanup

log cleanup

speech chunking improvements

polishing

microphone setting, ui polishing

polishing speech

attachments fixes and polishing

attachment system polishing

attachments merge

non image generic icons working

paste image working

improvements to drag drop, image modal

initial attachment improvements w/ preview on reload