BUG: Command bindings are not proven against real terminal keypresses

[webfish0]

User feedback: command bindings do not work properly in the live terminal.

Root issue:

• Existing evidence drove logical action names such as ctrl+shift+p through the session harness.
• It did not prove actual terminal keypress objects/sequences from Node/readline.
• Some VS Code-style chords, especially Ctrl+Shift+P, are unreliable or indistinguishable in many terminals.

Expected:

• MVP-visible shortcuts must be terminal-safe and tested using keypress objects/sequences.
• UI hints should prefer reliable bindings.
• Unreliable VS Code-compatible bindings may remain as optional aliases, but not as the only visible path.

Acceptance:

• Add regression tests for actual keypress objects/sequences.
• Provide reliable command palette and terminal bindings.
• Update visible hints and user-perspective evidence.
• npm run verify:product-mvp passes.

[webfish0]

Fixed in commit b979b4e (fix: test and repair terminal command bindings).

Finding:

• The previous tests did not prove live terminal key decoding. They drove logical action labels through the session harness.
• Normal-mode printable keys were also incorrectly handled before Normal-mode commands, so i could be treated as text in the live key path.
• Ctrl+Shift+P is not a reliable primary terminal binding because many terminals cannot distinguish it from Ctrl+P.

Fix:

• Added terminal key normalization in src/tui/commands.mjs.
• Added T-010-keypress, which tests actual keypress-shaped objects/sequences.
• Made F1 and : the primary command-palette bindings.
• Made F2 the primary terminal binding.
• Kept Ctrl+Shift+P only as an optional compatibility alias when the terminal reports it distinctly.
• Fixed Normal-mode printable key handling so i enters Insert mode and does not insert text.
• Updated the user-perspective journey to send actual keypress events for bindings.
• Updated visible UI hints and docs.

Verification:

• npm run verify:product-mvp passed.
• T-010-keypress passed.
• USER-MVP-001 passed using actual keypress events for visible bindings.

[webfish0]

Closing: command bindings are now tested through actual keypress-shaped events and terminal-safe bindings are advertised.