docs(governance): align required status check name with branch protection

Author: HenryLach

CONTRIBUTING.md

@@ -198,7 +198,7 @@ Merge policy:
 Current protection baseline for `main`:
 
 - PR required before merge
-- CI required (`CI / ci`)
+- CI required (`ci`)
 - Conversation resolution required
 - Required approvals: `0` (solo-maintainer baseline; may increase as maintainership expands)
 

docs/maintainers/repository-governance.md

@@ -71,7 +71,7 @@ Each PR should:
 Recommended protections for `main`:
 
 - Require pull request before merging
-- Require status checks to pass (`CI / ci`)
+- Require status checks to pass (`ci`)
 - Require branches to be up to date before merge
 - Require conversation resolution before merge
 - Dismiss stale reviews on new commits
@@ -140,7 +140,7 @@ gh api --method PATCH repos/HenryLach/taskplane \
 gh api --method PUT repos/HenryLach/taskplane/branches/main/protection \
   -H "Accept: application/vnd.github+json" \
   -F required_status_checks[strict]=true \
-  -f required_status_checks[contexts][]=CI\ /\ ci \
+  -f required_status_checks[contexts][]=ci \
   -F enforce_admins=false \
   -F required_pull_request_reviews[dismiss_stale_reviews]=true \
   -F required_pull_request_reviews[require_code_owner_reviews]=false \