docs(wake-lock): record wake-lock change workflow

Add the wake-lock SCR, discussion summary, and task artifacts that captured investigation, specification, and implementation handoff for the system-sleep-only behavior change.

tasks/current.md

@@ -0,0 +1,19 @@
+# Current Tasks
+
+## Active Discussions
+
+- DISCUSSION-001 — Wake lock behavior change for macOS sleep vs screen lock — summarized, routed to task 056
+
+## Active
+
+- 055-wake-lock-investigation.md — standard / investigation / logic — Assigned to tech_lead
+- 056-wake-lock-behavior-change.md — complex / spec / logic — Assigned to business_analyst
+- 057-implement-system-sleep-only-wake-lock.md — complex / implementation / logic — Assigned to workflow_runner
+
+## Todo
+
+- 023-symbol-attachments.md
+
+## Blocked
+
+- None.