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-cli/start-cli-registry-admin-signer-add.1

@@ -0,0 +1,25 @@
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.TH start-cli-registry-admin-signer-add 1  "add " 
+.SH NAME
+start\-cli\-registry\-admin\-signer\-add \- Add signer
+.SH SYNOPSIS
+\fBstart\-cli registry admin signer add\fR <\fB\-n\fR|\fB\-\-name\fR> [\fB\-c\fR|\fB\-\-contact\fR] [\fB\-\-key\fR] [\fB\-h\fR|\fB\-\-help\fR] [\fIDATABASE\fR] 
+.SH DESCRIPTION
+Add signer
+.SH OPTIONS
+.TP
+\fB\-n\fR, \fB\-\-name\fR \fI<NAME>\fR
+Name of the signer
+.TP
+\fB\-c\fR, \fB\-\-contact\fR \fI<CONTACT>\fR
+Contact information for signer
+.TP
+\fB\-\-key\fR \fI<KEYS>\fR
+Public key for signer
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Print help
+.TP
+[\fIDATABASE\fR]
+Path to the database file