- Add tests/e2e/test_smoke.py: page-load error check for all pages
- Add tests/e2e/test_interactions.py: click every interactable, diff
errors, XFAIL expected demo failures, flag regressions as XPASS
- Fix conftest get_page_errors() to use text_content() instead of
inner_text() so errors inside collapsed expanders are captured with
their actual message text (inner_text respects CSS display:none)
- Fix tests/e2e/modes/demo.py base_url to include /peregrine path prefix
(STREAMLIT_SERVER_BASE_URL_PATH=peregrine set in demo container)
App fixes surfaced by the harness:
- task_runner.py: add DEMO_MODE guard for discovery task — previously
crashed with FileNotFoundError on search_profiles.yaml before any
demo guard could fire; now returns friendly error immediately
- 6_Interview_Prep.py: stop auto-triggering LLM session on page load
in demo mode; show "AI features disabled" info instead, preventing
a silent st.error() inside the collapsed Practice Q&A expander
Both smoke and interaction tests now pass clean against demo mode.
