Remove unused compression options, add man page installation

- Remove --compress/--algorithm CLI options (not wired to encode flow)
- Add man page installation to rpi/setup.sh
- Document man page installation in README.md and CLI.md
- Update man page to remove compression options

Compression will be properly implemented in v4.1.8.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/stegasoo.1

@@ -57,12 +57,6 @@ Passphrase (recommend 4+ words). Prompts if not provided.
 .B \-\-pin " " \fITEXT\fR
 PIN code. Prompts if not provided.
 .TP
-.B \-\-compress\fR/\fB\-\-no\-compress
-Enable/disable compression (default: enabled).
-.TP
-.B \-\-algorithm " " [\fIzlib\fR|\fIlz4\fR|\fInone\fR]
-Compression algorithm.
-.TP
 .B \-\-dry\-run
 Show capacity usage without encoding.
 .PP
@@ -143,7 +137,7 @@ Encode message into multiple images.
 [\fIoptions\fR]
 .PP
 Options: \fB\-m\fR, \fB\-f\fR, \fB\-o\fR/\fB\-\-output\-dir\fR, \fB\-\-suffix\fR, \fB\-\-passphrase\fR, \fB\-\-pin\fR,
-\fB\-\-compress\fR, \fB\-\-algorithm\fR, \fB\-r\fR/\fB\-\-recursive\fR, \fB\-j\fR/\fB\-\-jobs\fR, \fB\-v\fR/\fB\-\-verbose\fR.
+\fB\-r\fR/\fB\-\-recursive\fR, \fB\-j\fR/\fB\-\-jobs\fR, \fB\-v\fR/\fB\-\-verbose\fR.
 .RE
 .TP
 .B batch decode