feat(output): add TableColumn::align for right-aligned table columns

[jpage-godaddy]

Summary

• Adds an Alignment enum (Left/Right, default Left) and a TableColumn::align(Alignment) builder so a column's header and cells can be right-aligned in human table output — useful for numeric/price columns where left alignment leaves decimal points ragged.
• Threads alignment through render_array_with_columns/render_table; nested tables pick it up automatically since they route through the same rendering path.
• Exports Alignment from output::mod and the crate root alongside TableColumn.
• Documents the new builder in docs/concepts.md.

Implements DEVEX-1014

Test plan

• cargo fmt --all --check
• cargo clippy --all-targets -- -D warnings
• RUSTDOCFLAGS='-D warnings' cargo doc --no-deps
• cargo test --all-targets (piped, non-TTY width)
• cargo test --doc
• cargo rustdoc --lib -- -W missing-docs (zero missing docs)
• New unit tests for right-aligned padding + left-align default in src/output/human.rs
• New integration test reproducing the ticket's price-table scenario in tests/exhaustive_output.rs

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds first-class right/left alignment support for human table output, enabling numeric/price columns to be right-aligned while preserving existing defaults and view behavior across nested tables.

Changes:

• Introduces Alignment (Left/Right) and a TableColumn::align(Alignment) builder.
• Threads column alignment through the human table rendering pipeline (render_array_with_columns → render_table).
• Adds unit + integration coverage for right-aligned tables and documents the new API in concepts docs.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
cli-engine/src/output/human.rs	Adds Alignment, TableColumn::align, and applies alignment during table padding/rendering; includes new unit tests.
cli-engine/src/output/mod.rs	Re-exports Alignment from output module.
cli-engine/src/lib.rs	Re-exports Alignment at the crate root for public consumption.
cli-engine/tests/exhaustive_output.rs	Adds an integration test asserting right-aligned price columns in human output.
cli-engine/docs/concepts.md	Documents TableColumn::align(Alignment::Right) and its rendering scope.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.

Suppressed comments (1)

cli-engine/docs/concepts.md:623

• This bullet is a single very long line, while surrounding bullets are wrapped for readability. Wrapping it to match the local style will keep diffs and future edits easier to scan.

- `TableColumn::align(Alignment::Right)` right-aligns a column's header and cells (the default is `Alignment::Left`) — use it for numeric or price columns so digits and decimal points line up instead of looking ragged on the left. Only affects table rendering; a property-bag `key: value` line has no column width to align against.