Batch-replace [[wiki/clients/slug.md]] → [[clients/slug]] format
throughout overview.md and 6 client articles. The seeding agents used
the full path+extension format; correct convention is type/slug only.
Also fixes [[projects/msp-tools/guru-rmm]] → [[projects/gururmm]]
stale path in internal-infrastructure.md.
Post /wiki-lint run: 0 remaining format violations, 2 legitimate
broken links left (systems/neptune — unseeded; compilation queue entry).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mike Swanson
3146f86474