fix(apm-workflow): type: selects processing, it does not validate content

configure.md said apm.yml's `type:` field "constrains what .apm/ may
contain" and that changing it later "does not retroactively validate what
is already on disk" — both implying a validation step that does not exist.
Read against the installed apm-cli 0.28.0: PackageContentType controls how
a package is processed during install/compile, apm_package.py only
enum-checks the declared string, and validate_apm_package() branches on the
structural type derived from files on disk, never on the declared field.
There is no content-vs-type mismatch check anywhere.

The hazard is therefore the opposite of what the wording primed for:
silent omission. A package declaring type: instructions while shipping
.apm/skills/ installs no skill and compiles AGENTS.md only, exits 0, and
reports success having shipped none of its primitives. The rule is now to
verify deployed output rather than the exit code. apm-orchestrate carried
the same wording as a Hard Rule and is corrected in step; its separate
defects stay with #120.

Also refreshes the exemplar figures this branch had re-staled. 264a5db set
them to 3,222 words of references; 6cb47f8 then added 63 words and
invalidated them, and the correction above adds more. Re-measured after
all edits: body 237 and whole-file 304 both still hold, references total
3,416. body-discipline.md's "roughly 3,200" moves with it.

ADR-0020 is deliberately untouched — it self-pins its citations to
f9b919d — as is the git-commits negative example pinned to 5e23250.

Refs #99

plugins/kyberforge/skills/skill-author/references/contract.md

@@ -120,7 +120,7 @@ A generic pointer ("see references/ for details") is a Vale error — the agent
 
 **Dispatch is mandatory at two or more mutually exclusive flows.** The body carries the dispatch
 table and the gates common to every branch; each flow gets its own self-contained `references/`
-file. Exemplar: the `apm-workflow` skill — a **237-word body** dispatching to 3,222 words of
+file. Exemplar: the `apm-workflow` skill — a **237-word body** dispatching to 3,416 words of
 references. Calibrate against 237: that file's whole-file count is 304 words, and aiming at that
 number instead overshoots the body budget by ~30%.