- Strip ANSI / control characters when reading log files so daemon
logs that carry colour escape codes render clean instead of as
garbled special characters (the source side is fixed in the hub
too; this is the defensive belt for existing files).
- Generalise the file viewer (read top-down + plain mode) and add an
in-Studio "View" affordance for config.yaml / .yml / .toml on the
Doctor paths panel, so config is readable without leaving Studio.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>