Implement TUI colon command mode

apps/tui/COMMANDS.md

@@ -0,0 +1,32 @@
+# TUI colon-command coverage
+
+The `:` prompt uses `ironstorage::command::parse_from`, so flags, aliases, and
+validation are shared with the milestone-01 command contract. Quoting is parsed
+in-process; no shell or CLI executable is started. Workflow-specific screens
+consume the typed requests emitted by command mode.
+
+| Milestone-01 operation | TUI command |
+| --- | --- |
+| Initialize recipients | `:init GPG-ID…` |
+| List/show | `:list [PATH]`, `:show [OPTIONS] [ENTRY]` |
+| Find/grep | `:find TERM…`, `:grep [OPTIONS] PATTERN` |
+| Insert/edit | `:insert [OPTIONS] ENTRY`, `:edit ENTRY` |
+| Generate | `:generate [OPTIONS] ENTRY [LENGTH]` |
+| Remove/move/copy | `:remove`, `:move`, `:copy` with their CLI arguments |
+| Git init/status/log/diff/add/commit | `:git init`, `:git status`, `:git log`, `:git diff`, `:git add`, `:git commit` |
+| Git remote/config | `:git remote …`, `:git config …` |
+| Git fetch/pull/push/sync | `:git fetch`, `:git pull`, `:git push`, `:git sync` |
+| OTP code | `:otp code [OPTIONS] ENTRY` |
+| OTP insert/append | `:otp insert …`, `:otp append …` |
+| OTP URI/validate | `:otp uri …`, `:otp validate URI` |
+| OTP version | `:otp version` |
+| Help/version | `:help [TOPIC]`, `:version` |
+| TUI lease | `:lock`, `:unlock` |
+
+`:quit` is a TUI convenience. CLI shell-script generation is intentionally
+unavailable inside an interactive TUI; Tab and Shift-Tab provide contextual
+in-process completion instead.
+
+Remove requests always pass through a `y`/`n` confirmation before their typed
+storage request is emitted. Command input containing OTP URIs, Git remote URLs,
+or Git configuration values is omitted from history and masked while rendered.