feat: merge Company Overview generation into single synthesis call

feat: add company primer research tab

feat: multi-provider LLM support, prominent chat, design pass, and new analytics

feat: app.py — add _get_display_brief hook and translation cost absorption

feat: Decision Stack redesign - 9 routes collapse into 4 (Verdict / Signals / Financials / Chat)

chore: checkpoint sidebar nav + i18n work-in-progress before Decision Stack redesign

feat: clarify sidebar UX — mono-ticker input, portfolio chips, auto-add after brief generation

feat: add Chat tab — bounded Q&A agent over stored filings and transcripts

feat: wire Exposure Radar into app — nav, sidebar portfolio input, brief persistence hook

refactor: global disclaimer, section_divider to components, numbered_list helper (Lot 5)

feat: add Quality & Tone deep-dive section (Lot 2)

feat: redesign Verdict tab for senior equity research / PM audience

fix: retry on overloaded_error + friendlier API error messages

fix: replace fragment run_every with server-side sleep+rerun to fix HF Spaces

feat: analytical edge section + fix HF Spaces fragment polling race

feat: custom progress bar with % and gradient for brief generation

feat: progress bar during generation + auto-collapse older reasoning steps

deploy: Primer app for HF Spaces — clean orphan history