fix(content): address PR #123 round 2 — Founder terminology, names

Fix 3 issues from round 2 review:

- ovh_arc_003: "Gatebuilder" → "Founder structure" (canonical term)
- ovh_ror_002: Subordinate → Colleague (peers, not hierarchy)
- ovh_mfg_001: "Orien" → "Krev" (too close to Earth constellation)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/content/npc-conversations/overheard.ron

@@ -805,7 +805,7 @@
             zone_types: ["rural_orbital"],
             role_pair: (a: "supply_coordinator", b: "watch_officer"),
             register: Work,
-            relationship_context: Subordinate,
+            relationship_context: Colleague,
             topic: "resupply_gap",
             lines: [
                 ( speaker: A, text: "Resupply window was delayed by eight days. Current consumables run to day forty. Gap is twenty-two days." ),
@@ -1255,7 +1255,7 @@
             topic: "overtime_and_family",
             lines: [
                 ( speaker: A, text: "Third double shift this week. Daughter's recital is tomorrow evening." ),
-                ( speaker: B, text: "Swap with Orien on bay six. Orien needs the hours." ),
+                ( speaker: B, text: "Swap with Krev on bay six. Krev needs the hours." ),
                 ( speaker: A, text: "Supervisor won't approve a bay swap mid-cycle. Already asked." ),
                 ( speaker: B, text: "Cover bay four for me Thursday. I'll run yours tomorrow. Off the books." ),
             ],
@@ -1616,7 +1616,7 @@
             relationship_context: Acquaintance,
             topic: "significant_find_window",
             lines: [
-                ( speaker: A, text: "Gatebuilder structure in section C is fully intact. First recovered one at this depth." ),
+                ( speaker: A, text: "Founder structure in section C is fully intact. First recovered one at this depth." ),
                 ( speaker: B, text: "First one means the site's value just changed significantly." ),
                 ( speaker: A, text: "Publication will bring attention." ),
                 ( speaker: B, text: "Publication or the period before publication." ),