Add module versioning, drop deferred tasks — ingest v1.0, history v1.0, api v1.0

Implement release note discipline per bible module-versioning contract:
- Add version.go with Version = "1.0" to ingest, history, api packages
- Drop CI task (no CI infrastructure planned)
- Drop Release note discipline task (now implemented)

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

internal/api/version.go

@@ -0,0 +1,3 @@
+package api
+
+const Version = "1.0"

internal/history/version.go

@@ -0,0 +1,3 @@
+package history
+
+const Version = "1.0"

internal/ingest/version.go

@@ -0,0 +1,3 @@
+package ingest
+
+const Version = "1.0"