diff --git a/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-branch-validation.md b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-branch-validation.md
new file mode 100644
index 000000000..23f5d305b
--- /dev/null
+++ b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-branch-validation.md
@@ -0,0 +1,22 @@
+# PR_26175_CHARLIE_028 Branch Validation
+
+## Startup
+
+- Started after PR #164 and PR #167 were merged.
+- Returned to `main`.
+- Pulled `origin/main`.
+- Verified local `main` commit: `245c30dda9cf`.
+- Verified worktree clean.
+- Verified local/origin sync: `0/0`.
+
+## Branch
+
+- Branch: `pr/26175-CHARLIE-028-team-charlie-final-closeout`
+- Base: `main`
+- Scope: final Team Charlie closeout report artifacts only.
+
+## Result
+
+- PASS: branch created from clean synced `main`.
+- PASS: no runtime files changed.
+- PASS: no UI, API, database, backlog, roadmap, or Project Instruction source files changed.
diff --git a/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-manual-validation-notes.md b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-manual-validation-notes.md
new file mode 100644
index 000000000..377201789
--- /dev/null
+++ b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-manual-validation-notes.md
@@ -0,0 +1,21 @@
+# PR_26175_CHARLIE_028 Manual Validation Notes
+
+## Manual Review
+
+- Confirmed PR #164 is merged.
+- Confirmed PR #167 is merged.
+- Confirmed `main` was clean and synchronized before PR_028 branch creation.
+- Confirmed Team Charlie System Health ownership bullets are present.
+- Confirmed Environment Isolation & Developer Experience is Cancelled / Not Doing.
+- Confirmed System Health v1 is complete in backlog and roadmap.
+- Confirmed future enhancements are separated.
+- Confirmed no open Team Charlie PRs existed after PR #167 merged and before PR_028 was opened.
+- Confirmed no Team Charlie review requests were found for `ToolboxAid`.
+- Confirmed Charlie branch inventory was reviewed.
+- Confirmed no Charlie runtime work remains unmerged.
+
+## Scope Check
+
+PR_028 changes are limited to report artifacts under `docs_build/dev/reports/`.
+
+No runtime, UI, API, database, backlog, roadmap, or Project Instruction source files are changed.
diff --git a/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-requirement-checklist.md b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-requirement-checklist.md
new file mode 100644
index 000000000..d1ece80e9
--- /dev/null
+++ b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-requirement-checklist.md
@@ -0,0 +1,32 @@
+# PR_26175_CHARLIE_028 Requirement Checklist
+
+- PASS: Review PR #164 final state.
+- PASS: Verify PR #164 docs/governance-only scope.
+- PASS: Verify PR #164 reports and ZIP artifact.
+- PASS: Merge PR #164, or confirm it was already merged.
+- PASS: Return to `main` after PR #164 merge.
+- PASS: Review PR #167 final state.
+- PASS: Verify PR #167 reports-only scope.
+- PASS: Verify PR #167 does not change runtime, roadmap, backlog, or Project Instructions.
+- PASS: Merge PR #167.
+- PASS: Return to clean synced `main` after PR #167 merge.
+- PASS: Audit GitHub for open/draft Charlie PRs.
+- PASS: Audit Charlie review requests.
+- PASS: Audit Charlie branches.
+- PASS: Audit backlog.
+- PASS: Audit roadmap.
+- PASS: Audit Project Instructions.
+- PASS: Audit runtime.
+- PASS: Verify required reports exist.
+- PASS: Create final closeout report.
+- PASS: Create validation report.
+- PASS: Create branch validation report.
+- PASS: Create requirement checklist.
+- PASS: Create manual validation notes.
+- PASS: Create `codex_review.diff`.
+- PASS: Create `codex_changed_files.txt`.
+- PASS: Create repo-structured ZIP under `tmp/`.
+- PASS: Push PR_028 branch.
+- PASS: Open PR_028 draft PR.
+- PASS: Do not delete branches.
+- PASS: Do not merge PR_028 without separate Owner approval.
diff --git a/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-validation.md b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-validation.md
new file mode 100644
index 000000000..5d9c7cd34
--- /dev/null
+++ b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-validation.md
@@ -0,0 +1,54 @@
+# PR_26175_CHARLIE_028 Validation Report
+
+## Commands
+
+```text
+git status --short --branch
+```
+
+Result: PASS. `main` was clean and synchronized before PR_028 branch creation.
+
+```text
+git rev-list --left-right --count origin/main...HEAD
+```
+
+Result before PR_028 branch creation: `0 0`.
+
+```text
+git diff --check
+```
+
+Result: PASS.
+
+```text
+git diff --name-only
+```
+
+Result: PASS. PR_028 changes are limited to `docs_build/dev/reports/`.
+
+```text
+rg -n "System Health v1 complete|Cancelled / Not Doing|Environment Isolation|Team Charlie System Health owns" docs_build\dev\ProjectInstructions docs_build\dev\roadmaps
+```
+
+Result: PASS. Required backlog, roadmap, and ownership markers are present.
+
+## GitHub Validation
+
+- PASS: PR #164 is merged.
+- PASS: PR #167 is merged.
+- PASS: no open Team Charlie PRs were found after PR #167 merged and before PR_028 opened.
+- PASS: no Team Charlie review requests were found for `ToolboxAid`.
+
+## Runtime Scope
+
+- PASS: PR_028 changed files are reports-only.
+- PASS: no runtime files changed.
+- PASS: no UI, API, database, backlog, roadmap, or Project Instruction source files changed.
+
+## Playwright
+
+Not run. This is a documentation/report-only closeout PR.
+
+## Unit Tests
+
+Not run. This is a documentation/report-only closeout PR.
diff --git a/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout.md b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout.md
new file mode 100644
index 000000000..cb1bbde7f
--- /dev/null
+++ b/docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout.md
@@ -0,0 +1,117 @@
+# PR_26175_CHARLIE_028-team-charlie-final-closeout
+
+## Summary
+
+Final Team Charlie repository closeout after merging PR #164 and PR #167.
+
+This report is documentation/report-only. It does not change runtime, UI, API, database, backlog, roadmap, or Project Instruction source files.
+
+## Completed PRs
+
+| PR | Title | Merge Commit |
+| --- | --- | --- |
+| #93 | `PR_26172_CHARLIE_001-repository-compliance-audit` | `f2b50ac9d79256df3a7716ac4eff21f3a4303bb3` |
+| #94 | `PR_26172_CHARLIE_002-test-results-artifact-cleanup` | `dd72e8396e7b5544bffa54d6730217a8030be457` |
+| #151 | `PR_26175_CHARLIE_007-system-health-environment-identity` | `0e25639fb023653bda679290f5748fa0c3a00a8f` |
+| #152 | `PR_26175_CHARLIE_008-system-health-current-database-health` | `9701da23450d26d3e1fc00f1fe2653e986e84e55` |
+| #153 | `PR_26175_CHARLIE_009-system-health-current-r2-health` | `939c2ab327a2c792c184748d74844914f1b77a90` |
+| #155 | `PR_26175_CHARLIE_010-system-health-history-and-closeout + 011-admin-submenu-alphabetical-order` | `d4f4279501abf3d9aaa7f857aa240f6e019b8229` |
+| #158 | `PR_26175_CHARLIE_012-024-system-health-completion` | `48d52b1a1f4116fd5c4694e8ec7b1f1e3a3d6e4e` |
+| #162 | `PR_26175_CHARLIE_025-system-health-backlog-closeout` | `dbd92d1866c13f62782f54b9b7f7b525cd771514` |
+| #164 | `PR_26175_CHARLIE_026-charlie-governance-gap-closeout` | `a66048f50519f4f49b821f69af05d990448c7c74` |
+| #167 | `PR_26175_CHARLIE_027-final-charlie-audit` | `245c30dda9cfb6531173c6d9182afe120df8fc9f` |
+
+## Final Repository Status
+
+- Main commit after PR #167 merge: `245c30dda9cf`.
+- Main branch verification after PR #167 merge: PASS.
+- Worktree before PR_028 branch creation: clean.
+- Local/origin sync before PR_028 branch creation: `0/0`.
+- Branch deletion: not performed.
+
+## GitHub Audit
+
+- PASS: no open Team Charlie PRs were present after PR #167 merged and before this PR_028 branch was opened.
+- PASS: no draft Team Charlie PRs were present after PR #167 merged and before this PR_028 branch was opened.
+- PASS: no Team Charlie review requests were found for `ToolboxAid`.
+- Note: this PR_028 branch is the final administrative closeout artifact and is not merged by this report.
+
+## Branch Inventory
+
+| Branch | Merged Into Main | Behind Main | Ahead Main | Notes |
+| --- | --- | ---: | ---: | --- |
+| `origin/pr/26172-CHARLIE-001-repository-compliance-audit` | yes | 214 | 0 | retained |
+| `origin/pr/26172-CHARLIE-002-test-results-artifact-cleanup` | yes | 212 | 0 | retained |
+| `origin/pr/26175-CHARLIE-007-system-health-environment-identity` | yes | 45 | 0 | retained |
+| `origin/pr/26175-CHARLIE-008-system-health-current-database-health` | yes | 42 | 0 | retained |
+| `origin/pr/26175-CHARLIE-009-system-health-current-r2-health` | yes | 36 | 0 | retained |
+| `origin/pr/26175-CHARLIE-010-system-health-history-and-closeout` | yes | 21 | 0 | retained |
+| `origin/pr/26175-CHARLIE-025-system-health-backlog-closeout` | yes | 15 | 0 | retained |
+| `origin/pr/26175-CHARLIE-026-charlie-governance-gap-closeout` | yes | 4 | 0 | retained |
+| `origin/pr/26175-CHARLIE-027-final-charlie-audit` | yes | 1 | 0 | retained |
+| `origin/PR_26172_CHARLIE_repository-compliance-stack` | yes | 94 | 0 | retained |
+| `origin/PR_26175_CHARLIE_006-project-instructions-system-health-infrastructure` | no | 81 | 1 | orphaned docs/governance branch; no runtime files |
+
+## Backlog
+
+Completed:
+- Repository Compliance
+- Test Results Cleanup
+- System Health v1
+- Backlog Closeout
+- Governance Closeout
+
+Active Charlie work:
+- None.
+
+Future enhancements only:
+- Scheduler execution engine
+- Outbound notifications
+- External alert delivery
+- Provider telemetry
+- Charts and metrics
+- Log viewer
+- Operational automation
+- Observability integrations
+
+## Roadmap
+
+- PASS: roadmap matches backlog for System Health v1.
+- PASS: System Health v1 is complete.
+- PASS: future enhancements are separated.
+- PASS: cancelled Environment Isolation and runtime-port work is listed as not active roadmap work.
+
+## Project Instructions
+
+- PASS: Charlie ownership is complete.
+- PASS: System Health ownership is present.
+- PASS: Environment Isolation is marked Cancelled / Not Doing.
+
+## Runtime
+
+- PASS: no Charlie runtime work remains unmerged.
+- The only unmerged Charlie branch is `origin/PR_26175_CHARLIE_006-project-instructions-system-health-infrastructure`.
+- That branch is docs/governance/report only and changes no runtime, UI, API, or database files.
+
+## Reports
+
+- PASS: PR_026 reports exist.
+- PASS: PR_027 reports exist.
+- PASS: PR_028 report set exists in this branch.
+
+## Final Charlie Status
+
+- Current Work: COMPLETE
+- System Health: COMPLETE
+- Governance: COMPLETE
+- Backlog: COMPLETE
+- Roadmap: COMPLETE
+- Future Enhancements: DEFERRED
+
+## Closeout Note
+
+No branches were deleted. PR_028 is not merged by this report because no separate Owner approval was provided for merging PR_028.
+
+## ZIP Artifact
+
+- `tmp/PR_26175_CHARLIE_028-team-charlie-final-closeout_delta.zip`
diff --git a/docs_build/dev/reports/codex_changed_files.txt b/docs_build/dev/reports/codex_changed_files.txt
index 42d107a6c..9408a5ff3 100644
--- a/docs_build/dev/reports/codex_changed_files.txt
+++ b/docs_build/dev/reports/codex_changed_files.txt
@@ -1,6 +1,7 @@
 docs_build/dev/reports/codex_changed_files.txt
-docs_build/dev/reports/PR_26175_CHARLIE_027-final-charlie-audit.md
-docs_build/dev/reports/PR_26175_CHARLIE_027-final-charlie-audit-branch-validation.md
-docs_build/dev/reports/PR_26175_CHARLIE_027-final-charlie-audit-manual-validation-notes.md
-docs_build/dev/reports/PR_26175_CHARLIE_027-final-charlie-audit-requirement-checklist.md
-docs_build/dev/reports/PR_26175_CHARLIE_027-final-charlie-audit-validation.md
+docs_build/dev/reports/codex_review.diff
+docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout.md
+docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-branch-validation.md
+docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-manual-validation-notes.md
+docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-requirement-checklist.md
+docs_build/dev/reports/PR_26175_CHARLIE_028-team-charlie-final-closeout-validation.md
diff --git a/docs_build/dev/reports/codex_review.diff b/docs_build/dev/reports/codex_review.diff
index 7682483b9..f1395f541 100644
Binary files a/docs_build/dev/reports/codex_review.diff and b/docs_build/dev/reports/codex_review.diff differ