Repo hygiene: fill stack-and-commands, normalize workplan statuses

- Fill .claude/rules/stack-and-commands.md (was an empty TODO template)
- Normalize workplan frontmatter statuses to canonical vocabulary
  (completed/done -> finished) per ADR-001

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

workplans/RAIL-FAB-WP-0001-ecosystem-graph-model.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Railiance Ecosystem Graph Model"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: high

workplans/RAIL-FAB-WP-0002-ecosystem-registry-service.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Railiance Ecosystem Registry Service"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: high

workplans/RAIL-FAB-WP-0003-registry-feed-and-library-inventory.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Registry Feed And Library Inventory"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: high

workplans/RAIL-FAB-WP-0004-registry-inventory-and-drift.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Registry Inventory And Drift Views"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: high

workplans/RAIL-FAB-WP-0005-registry-hardening.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Registry Hardening"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: medium

workplans/RAIL-FAB-WP-0006-multi-repo-registry-onboarding.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Multi-Repo Registry Onboarding"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: high

workplans/RAIL-FAB-WP-0007-all-local-repo-onboarding.md

@@ -4,7 +4,7 @@ type: workplan
 title: "All Local Repo Onboarding"
 domain: financials
 repo: railiance-fabric
-status: completed
+status: finished
 owner: codex
 topic_slug: railiance
 planning_priority: medium