fix: clap CLI definitions and manpage generation

- add #[group(skip)] to all Parser-derived structs
- fix conflicts_with and arg definitions for correct CLI behavior
- refactor bin entry points to support manpage generation

core/man/start-container/start-container-subcontainer-exec-command.1

@@ -0,0 +1,39 @@
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.TH start-container-subcontainer-exec-command 1  "exec-command " 
+.SH NAME
+start\-container\-subcontainer\-exec\-command
+.SH SYNOPSIS
+\fBstart\-container subcontainer exec\-command\fR [\fB\-\-force\-tty\fR] [\fB\-\-force\-stderr\-tty\fR] [\fB\-\-pty\-size\fR] [\fB\-e\fR|\fB\-\-env\fR] [\fB\-\-env\-file\fR] [\fB\-w\fR|\fB\-\-workdir\fR] [\fB\-u\fR|\fB\-\-user\fR] [\fB\-h\fR|\fB\-\-help\fR] <\fICHROOT\fR> [\fICOMMAND\fR] 
+.SH DESCRIPTION
+.SH OPTIONS
+.TP
+\fB\-\-force\-tty\fR
+Force TTY mode for I/O
+.TP
+\fB\-\-force\-stderr\-tty\fR
+Force stderr to be treated as a TTY
+.TP
+\fB\-\-pty\-size\fR \fI<PTY_SIZE>\fR
+PTY terminal size (<rows>:<cols>[:<x>:<y>])
+.TP
+\fB\-e\fR, \fB\-\-env\fR \fI<ENV>\fR
+Environment variable (KEY=VALUE)
+.TP
+\fB\-\-env\-file\fR \fI<ENV_FILE>\fR
+Path to environment file
+.TP
+\fB\-w\fR, \fB\-\-workdir\fR \fI<WORKDIR>\fR
+Working directory path
+.TP
+\fB\-u\fR, \fB\-\-user\fR \fI<USER>\fR
+User name to run as
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Print help
+.TP
+<\fICHROOT\fR>
+Path for chroot environment
+.TP
+[\fICOMMAND\fR]
+Command to execute in the container