feat: add text locators

[cpendery (cpendery)]

Summary

• add lazy, reusable locators across Rust, Python, and JavaScript
• expose Playwright-style getByText / getByStyle APIs (get_by_text / get_by_style in Python and Rust)
• allow text and contiguous per-row style-run stages to be chained in either order and re-resolved for every read or action
• support literal/regex matching, viewport or full scrollback, whitespace normalization, anchors, match locations, and any / unique / first / last / nth selection
• click the middle matched cell and highlight selected matches in the live monitor and SVG screenshots
• expose the visible CLI family as find|expect|click|highlight text "T", all with the same selector and optional style flags
• make click text auto-wait; retain wait text only as a hidden compatibility alias
• pass typed locator stage arrays and style/action parameters across N-API and PyO3 with no locator JSON serialization
• keep findText / find_text, waitText / wait_text, and expectText / expect_text compatibility helpers on the generic locator engine
• version the daemon protocol independently so older daemons restart before receiving revised query requests
• consolidate the implementation onto one generic action stack; the cleanup revisions remove 1,560 lines and add 942, a net reduction of 618 lines

Examples

await terminal
  .getByText("Product 2 Add to cart", { whitespace: "normalize" })
  .getByText("Add to cart")
  .click();

await terminal
  .getByStyle({ bold: true })
  .getByText("Warning")
  .highlight();

await (
    terminal
    .get_by_text("Settings Save", whitespace="normalize")
    .get_by_style(TextStyle(bold=True))
    .get_by_text("Save")
    .click()
)

tui-test find text "Add to cart" --fg green
tui-test expect text "Add to cart" --fg green --timeout 5000
tui-test click text "Add to cart" --fg green --timeout 5000
tui-test highlight text "Add to cart" --fg green

Test plan

• cargo fmt --all -- --check
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo clippy -p tui-test-rs --all-targets --no-default-features -- -D warnings
• cargo build
• cargo test --workspace -- --test-threads=1
• python -m unittest discover -s bindings/python/tests
• python bindings/python/scripts/generate_stubs.py --check
• npm run test:node --prefix bindings/js

This draft consolidates and supersedes #150, #151, #152, and #154.