Add tab context metadata copy actions

[zachlloyd]

Description

Adds copy actions to the attached tab context menu so users can copy tab/session metadata directly from the same UI surface where that metadata is shown.

The menu now includes copy actions for available, non-empty metadata when it makes sense for the current tab layout:

• Horizontal tabs show Copy tab title only, matching the metadata visible in the horizontal tab strip.
• Vertical tabs grouped by tabs show copy actions for the tab title plus available focused-session metadata such as branch, working directory, and pull request link.
• Vertical tabs grouped by panes show copy actions sourced from the active pane, including Copy pane title instead of Copy tab title.

All new copy actions use sentence casing, and unavailable metadata is omitted from the menu rather than shown disabled.

Linked Issue

• The linked issue is labeled ready-to-spec or ready-to-implement.
• Where appropriate, screenshots or a short video of the implementation are included below (especially for user-visible or UI changes).

Screenshots / Videos

• Loom demo: https://www.loom.com/share/b57f7bfebea44a15b2703140db88c758

Testing

Added integration coverage for the main layout variants:

• test_tab_context_menu_copies_metadata covers horizontal tabs. It verifies that only the tab title copy action is present, and that selecting it copies the tab title.
• test_vertical_tab_context_menu_copies_metadata covers vertical tabs grouped by tabs. It verifies that the context menu can copy the branch, tab title, and working directory for the tab/focused session.
• test_vertical_pane_context_menu_copies_metadata covers vertical tabs grouped by panes. It creates a split pane with different metadata and verifies that the menu copies the active pane branch, pane title, and working directory.

Validation run:

• ./script/run (bundled and launched WarpLocal.app)
• ./script/run (bundled and launched WarpLocal.app)
• PATH=/tmp/warp-corepack-bin:$PATH /Users/zach/Projects/warp_3/target/debug/integration test_tab_context_menu_copies_metadata
• PATH=/tmp/warp-corepack-bin:$PATH /Users/zach/Projects/warp_3/target/debug/integration test_vertical_tab_context_menu_copies_metadata
• PATH=/tmp/warp-corepack-bin:$PATH /Users/zach/Projects/warp_3/target/debug/integration test_vertical_pane_context_menu_copies_metadata
• cargo fmt --manifest-path /Users/zach/Projects/warp_3/Cargo.toml --all --check
• PATH=/tmp/warp-corepack-bin:$PATH cargo nextest run --manifest-path /Users/zach/Projects/warp_3/Cargo.toml --no-fail-fast --workspace test_tab_context_menu_copies_metadata test_vertical_tab_context_menu_copies_metadata test_vertical_pane_context_menu_copies_metadata
• PATH=/tmp/warp-corepack-bin:$PATH cargo clippy --manifest-path /Users/zach/Projects/warp_3/Cargo.toml --workspace --all-targets --all-features --tests -- -D warnings

Note: initial nextest/clippy attempts without temporary Corepack shims failed in command-signatures-v2 because the global Yarn version is 1.22.22 while that crate requires Corepack/Yarn 4.0.1. Rerunning with temporary Corepack shims passed.

Agent Mode

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

CHANGELOG-IMPROVEMENT: Added tab context menu actions to copy visible tab and pane metadata when available.

Co-Authored-By: Oz oz-agent@warp.dev

[oz-for-oss]

@zachlloyd

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[oz-for-oss]

Overview

Adds layout-aware copy actions for tab and vertical-tabs context menus, with integration coverage for horizontal tab, vertical tab, and vertical pane modes.

Concerns

• Pane-mode row context menus copy metadata from the focused pane rather than the clicked pane, so right-clicking a non-focused pane row can copy the wrong title, branch, and working directory.

Verdict

Found: 0 critical, 1 important, 0 suggestions

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