Add --hide-suggested-questions and --hide-build-context-hint CLI flags

[SokolovYaroslav]

Summary

• Adds --hide-suggested-questions flag to hide the suggested questions block on the empty chat screen
• Adds --hide-build-context-hint flag to hide the "Context isn't built yet" warning and remove the Build Context step from the setup wizard (renumbering the final step from 5 → 4)
• Both flags follow the existing --read-only-domain pattern end-to-end (__main__.py → commands/app.py → ui/cli.py → ui/app.py → session state → UI components)
• Both flags are enabled by default in the Snowflake demo app.py

Test plan

• Run app without flags — both elements visible as before
• Run with --hide-suggested-questions — suggested questions block gone from empty chat
• Run with --hide-build-context-hint — warning gone from empty chat, Build Context step absent from setup wizard, final step renumbered to 4
• Run with both flags — all hidden
• Verify Snowflake demo (app.py) hides both by default

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds two new UI-related CLI flags to control visibility of (1) the suggested-questions block on empty chat and (2) the “context isn’t built yet” hint + the Build Context step in the setup wizard, wiring them through the Click CLI → Streamlit bootstrap → session state → UI rendering.

Changes:

• Add --hide-suggested-questions to hide the suggested questions UI on an empty chat.
• Add --hide-build-context-hint to hide the empty-chat “context not built” warning and conditionally remove/renumber the Build Context step in the setup wizard.
• Enable both flags by default in the Snowflake demo app.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/databao_cli/ui/pages/welcome.py	Conditionally hides the Build Context wizard step and renumbers the final step.
src/databao_cli/ui/components/chat.py	Hides suggested questions UI and the “context not built” warning based on session flags.
src/databao_cli/ui/cli.py	Forwards new flags into Streamlit app args.
src/databao_cli/ui/app.py	Adds argparse flags and stores values in Streamlit session state; adds helper for build-context hint.
src/databao_cli/commands/app.py	Passes new CLI flag values into the Streamlit bootstrap call.
src/databao_cli/main.py	Adds Click options for the new flags and stores them in ctx.obj.
examples/demo-snowflake-project/src/databao_snowflake_demo/app.py	Appends the new flags to sys.argv to enable them by default in the demo.

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[Copilot]

Pull request overview

This PR adds two new CLI flags (--hide-suggested-questions, --hide-build-context-hint) that control whether the empty-chat suggested-questions block and the “Context isn’t built yet” hint / setup-wizard Build Context step are shown, wiring the flags from the Click CLI through to Streamlit session state and UI rendering.

Changes:

• Add two Click flags to databao app and forward them into the Streamlit app args.
• Parse the new flags in the Streamlit app and persist them into st.session_state.
• Use the flags to conditionally hide suggested questions, the build-context hint, and the Build Context wizard step (including renumbering the final step).

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/databao_cli/ui/pages/welcome.py	Conditionally hides the Build Context wizard step and renumbers the final step.
src/databao_cli/ui/components/chat.py	Conditionally hides suggested questions and the “Context isn’t built yet” warning on empty chat.
src/databao_cli/ui/cli.py	Forwards the new flags into Streamlit subprocess app_args.
src/databao_cli/ui/app.py	Adds argparse flags and stores them into Streamlit session state; adds helper for build-context hiding.
src/databao_cli/commands/app.py	Passes new flag values into bootstrap_streamlit_app.
src/databao_cli/__main__.py	Adds Click options for the two new flags to databao app.
examples/demo-snowflake-project/src/databao_snowflake_demo/app.py	Enables both flags by default for the Snowflake demo by appending to sys.argv.

Comments suppressed due to low confidence (1)

src/databao_cli/ui/cli.py:45

• New CLI flags are being forwarded into the Streamlit subprocess via app_args, but there’s no test asserting the wiring end-to-end (Click → bootstrap_streamlit_app → subprocess.run args). Consider adding a unit test (e.g., in tests/test_app.py) that invokes databao app --hide-suggested-questions/--hide-build-context-hint and asserts subprocess.run receives the corresponding --hide-* arguments after --.

    app_args = ["--project-dir", str(project_path)]
    if read_only_domain:
        app_args.append("--read-only-domain")
    if hide_suggested_questions:
        app_args.append("--hide-suggested-questions")
    if hide_build_context_hint:
        app_args.append("--hide-build-context-hint")

    subprocess.run(
        [sys.executable, "-m", "streamlit", "run", app_path, *streamlit_args, "--", *app_args],
        check=True,
    )

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[Copilot]

Pull request overview

Adds two new CLI flags that control visibility of specific “empty chat” and setup-wizard UI elements, wiring them through the existing CLI → Streamlit arg → session state → UI component pattern used by --read-only-domain.

Changes:

• Introduces --hide-suggested-questions to suppress the suggested-questions block on an empty chat.
• Introduces --hide-build-context-hint to hide the “Context isn’t built yet” warning and optionally remove/renumber the Build Context step in the setup wizard.
• Adds CLI forwarding tests and enables both flags by default in the Snowflake demo app.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/test_app.py	Adds coverage to ensure new flags are parsed and forwarded, and default to False.
src/databao_cli/__main__.py	Adds Click options for both flags and stores them in ctx.obj for forwarding.
src/databao_cli/commands/app.py	Forwards the new flag values into the Streamlit bootstrap call.
src/databao_cli/ui/cli.py	Converts the forwarded booleans into Streamlit -- ... app args.
src/databao_cli/ui/app.py	Adds argparse flags for the Streamlit app and stores them into session state.
src/databao_cli/ui/components/chat.py	Uses session-state flags to hide suggested questions and the context-build warning.
src/databao_cli/ui/pages/welcome.py	Uses the build-context flag to hide the Build Context wizard step and renumber the final step.
examples/demo-snowflake-project/src/databao_snowflake_demo/app.py	Enables both flags by default for the Snowflake demo.

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