feat: agent-harness tenant #1 instance manifest (HARNESS-WP-0001-T07)

Extend .kaizen/schedule.yml with harness fields for daily rhythm, weekly
mail intake, and weekly review-prep; add task files, onboarding handoff
doc, and cutover gate updates for BINKY-WP-0004-T06.

.kaizen/schedule.yml

@@ -1,17 +1,48 @@
-# Kaizen scheduled agent execution manifest (ADR-005)
-# Declares which agents run on what cadence in this repo.
-# Validate with: kaizen-agentic schedule validate
-version: '1'
+# Instance manifest — ADR-005 schedule + agent-harness extensions (HARNESS-WP-0001-T07).
+# Validate:
+#   agent-harness validate --target . --strict
+#   kaizen-agentic schedule validate --target .   # base cadence keys; harness instance
+#     names mail-triage / review-prep use blueprint: coach for persona prepare
+#
+# Maps to activity-core definitions (still enabled: false until BINKY-WP-0004-T06):
+#   coach        → binky-daily-rhythm
+#   mail-triage  → binky-weekly-mail-intake
+#   review-prep  → binky-weekly-review-prep
+version: "1"
 timezone: Europe/Berlin
+harness: 0
 agents:
   coach:
-    cadence: weekly
-    cron: 0 9 * * 1
+    cadence: daily
+    cron: "23 8 * * 1-5" # weekdays 08:23 — aligns with binky-daily-rhythm
     enabled: true
+    lane: green
+    tool_profile: green-commit-only
+    budget: 80000
+  mail-triage:
+    cadence: weekly
+    cron: "37 9 * * 1" # Monday 09:37 — aligns with binky-weekly-mail-intake
+    enabled: true
+    blueprint: coach
+    lane: blue
+    tool_profile: blue-mail-triage
+    budget: 40000
+  review-prep:
+    cadence: weekly
+    cron: "43 16 * * 5" # Friday 16:43 — aligns with binky-weekly-review-prep
+    enabled: true
+    blueprint: coach
+    lane: green
+    tool_profile: green-commit-only
+    budget: 60000
+  # Kaizen fleet optimization (not a Binky rhythm slot; harness-ready for completeness)
   optimization:
     cadence: weekly
-    cron: 0 10 * * 1
+    cron: "0 10 * * 1"
     enabled: true
+    lane: green
+    tool_profile: green-commit-only
+    budget: 40000
   tdd-workflow:
     cadence: monthly
     enabled: false