docs(docs): add frontmatter to all sprint briefings

Standardized YAML frontmatter on all 115 sprint briefing files across
sprints 1-26 with title, description, type, status, sprint number, and
team fields.

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

docs/sprints/sprint-22/ci.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — CI Briefing"
+description: "Remove db/connectors symlink housekeeping"
+type: sprint
+status: archived
+sprint: 22
+team: "ci"
+---
+
 # Sprint 22: Wire — CI Tasks
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.

docs/sprints/sprint-22/client.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — Client Briefing"
+description: "Fix fog system blocky edges, entanglement ratio configuration, seed-based variation"
+type: sprint
+status: archived
+sprint: 22
+team: "client"
+---
+
 # Sprint 22: Wire — Client Tasks
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.

docs/sprints/sprint-22/joint.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — Joint Briefing"
+description: "Fog regression fix coordination, triangle pressure threshold, entanglement config sync"
+type: sprint
+status: archived
+sprint: 22
+team: "joint"
+---
+
 # Sprint 22: Wire — Joint / Integration
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.

docs/sprints/sprint-22/planning.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — Planning Briefing"
+description: "MobileChunk Idle state documentation, storyteller module activation scoping"
+type: sprint
+status: archived
+sprint: 22
+team: "planning"
+---
+
 # Sprint 22: Wire — Planning Tasks
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.

docs/sprints/sprint-22/server.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — Server Briefing"
+description: "Signed z-level fix, NPC pool generation, triangle instantiation, contamination activation"
+type: sprint
+status: archived
+sprint: 22
+team: "server"
+---
+
 # Sprint 22: Wire — Server Tasks
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.

docs/sprints/sprint-22/visual.md

@@ -1,3 +1,12 @@
+---
+title: "Sprint 22 — Visual Briefing"
+description: "Fog shader alpha tuning for semi-transparent layers per D-059"
+type: sprint
+status: archived
+sprint: 22
+team: "visual"
+---
+
 # Sprint 22: Wire — Visual Tasks
 
 **Goal:** Fix the fog regression, wire the authored Sova content into a production population and triangle set, and activate the contamination pacing layer that gives the vertical slice its 30-minute shape.