New flags:
- --print-config: scan installs and emit a JSON block per install with
derived server names (codesys-sp21-patch5, codesys-sp22-patch1, etc.)
- --sp <n>: filter to one SP family; collapses entry name to 'codesys'
when exactly one install matches
- --name <name>: override the entry name (only valid with --sp narrowing
to one)
Side effect: --detect now reuses the same detector and additionally
prints the derived profile name + suggested server entry name per
install, so even users sticking to manual config get the values
without guessing.
Refactored install discovery into src/detect.ts so both --detect and
--print-config share one implementation. New unit test fixture covers
version parsing, missing-exe, dedup, sort order, --sp filter behaviour,
--name override constraints, and verifies the emitted JSON parses back
once // comments are stripped.
The output also surfaces the multi-install caveat from launcher.ts:
the double-spawn guard refuses to start a second CODESYS.exe even on
a different exe path, so only one configured entry can be active at
a time.
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