Rev 3 glyphs: wire the 9 classifier-legacy marks (74→83), all backend archetypes now render real marks

Design Rev 3 drew the 9 legacy classifier marks (BRUSH #E0B84A, WHIFF #E86A6A,
CONNECTOR #9AB0C4, DISTRIBUTOR #7AB8D8, FASTBREAK #4AA0E8, FLEX #A08AC8,
HYBRID #C88AB0, SWITCH #C0B08A, SWITCHBOARD #90A0E8). Wired each to its own
Design mark + color (front lib/archetypes.js + backend archetypeService.js,
color-synced). These were the 9 NO-MARK backend keys — now none are on a
generic placeholder. They're classifier-side fallback renders (never
user-facing archetype names, per MANIFEST).

Re-imported Rev 3 package over specs/design-reference/ (83 glyph SVGs + MANIFEST
regenerated from the authoritative glyphDefs(); HANDOFF Rev 3 note).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

specs/design-reference/assets/glyphs/connector.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" fill="none"><circle cx="6" cy="7" r="2.4" fill="currentColor"/><circle cx="18" cy="17" r="2.4" fill="currentColor"/><path fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" d="M8 8.5C13 11 11 13 16 15.5"/></svg>