Make TUI zero-state section visibility configurable

[warp-agent-staging]

Description

The Warp Agent CLI zero state always rendered a fixed set of sections — including the signed-in account line — with no way to hide any of them. This adds per-section visibility settings so users can pick what the zero state shows.

New TUI settings under appearance.zero_state (the same surface as the existing animation settings), each defaulting to true so today's zero state is unchanged:

• show_signed_in_user — the Signed in as … account line
• show_changelog — the "What's new" header and bullets
• show_project_info — the project path header plus its rules/skills body
• show_mcp — the MCP header and status line
• show_animation — the rotating object together with its starfield

The title and version lines stay always-on (not requested, and they identify the surface).

Behavior details:

• A hidden section contributes no rows at all — no orphaned header and no spacer row. With every toggle off, only the title and version remain.
• Hiding the animation switches to a copy-only layout, so no empty animation panel is reserved beside the copy and no starfield is drawn behind it.
• The zero-state view subscribes to the settings group, so toggles apply to the live zero state without restarting the CLI.
• Unset (or unreadable) keys fall back to visible.

Originating thread: https://warpdev.slack.com/archives/C0BDQDW8V5E/p1785443872265259

Linked Issue

APP-5070

Testing

Commands run:

• ./script/format --check — passed
• cargo check -p warp_tui --tests — passed; existing test targets compile, but the full test suite was intentionally not run
• cargo clippy --workspace --exclude warp_completer --all-targets --tests -- -D warnings — passed
• cargo clippy -p warp --all-targets --tests -- -D warnings — passed
• cargo clippy -p warp_completer --all-targets --tests -- -D warnings — passed

Manual: built and ran the authenticated local TUI in tmux at 120×40, then hot-reloaded one setting at a time. Each capture set exactly one key to false; the original settings file was restored afterward.

Disabled setting	Captured result
show_signed_in_user	The account line disappeared; project info, MCP, and animation remained.
show_changelog	A tagged local build with a local channel-versions fixture first showed “What's new” plus two validation bullets. After disabling the setting, the header and both bullets disappeared while version, account, project, MCP, and animation remained.
show_project_info	The project path, loaded rules, and discovered skills disappeared; account, MCP, and animation remained.
show_mcp	The MCP header and status disappeared; account, project info, and animation remained.
show_animation	The rotating object and starfield disappeared, and the copy switched to the full-width copy-only layout; every text section remained.

show_signed_in_user = false

Warp Agent CLI
dev build

~/Documents/GitHub/warp-2
✓ AGENTS.md loaded
✓ 22 skills discovered

MCP
2 connected · 1 failed · 2 offline · 27 available

show_changelog = false (fixture-backed)

Enabled:

Warp Agent CLI
v0.2026.07.31.00.00.local_00
Signed in as …
What's new
• Validation item one
• Validation item two
MCP

Disabled:

Warp Agent CLI
v0.2026.07.31.00.00.local_00
Signed in as …
MCP

show_project_info = false

Warp Agent CLI
dev build
Signed in as …

MCP
2 connected · 1 failed · 2 offline · 27 available

show_mcp = false

Warp Agent CLI
dev build
Signed in as …

~/Documents/GitHub/warp-2
✓ AGENTS.md loaded
✓ 22 skills discovered

show_animation = false

Warp Agent CLI
dev build
Signed in as …

~/Documents/GitHub/warp-2
✓ AGENTS.md loaded
✓ 22 skills discovered

MCP
2 connected · 1 failed · 2 offline · 27 available

The remainder of the 120-column capture was blank: no object, starfield, or reserved animation panel.

Screenshots / Videos

Earlier visual capture with every section visible:

Earlier combined hidden-state capture:

Computer-use video recordings

View video recording: Recording of a live toggle: the TUI starts with every zero-state section visible, then the settings file is edited mid-run and the signed-in line, MCP, and animation/starfield disappear without a restart.

Follow-up merge and per-setting validation: https://staging.warp.dev/conversation/5891d408-eb5b-475c-bd04-3d515e2ea02c

Agent Mode

• Warp Agent Mode - This PR was created via Warp's AI Agent Mode

Conversation: https://staging.warp.dev/conversation/7bf4fc45-a70c-47a9-b9c4-e34516d3ed06
Run: https://oz.staging.warp.dev/runs/019fb4c9-855e-7b7e-acac-f80717cec4fe

This PR was generated with Oz.

CHANGELOG-IMPROVEMENT: The Warp Agent CLI zero state is now configurable — hide the signed-in account line, changelog, project info, MCP, or the animation with appearance.zero_state.show_* settings.