ToolboxAid · ToolboxAid · Jun 25, 2026 · Jun 25, 2026
diff --git a/admin/system-health.html b/admin/system-health.html
@@ -40,6 +40,7 @@ <h2>Admin</h2>
                                 <div class="accordion-body content-stack">
                                     <p>Environment Identity</p>
                                     <p>Environment Map</p>
+                                    <p>Environment Health Comparison</p>
                                     <p>Environment Capabilities</p>
                                     <p>Health API Contract</p>
                                     <p>Admin API Registry</p>
@@ -110,6 +111,25 @@ <h2 id="admin-system-health-title">System Health Tables</h2>
                                 </tbody>
                             </table>
                         </div>
+                        <div class="table-wrapper">
+                            <table class="data-table" aria-label="Environment health comparison">
+                                <caption>Environment Health Comparison</caption>
+                                <thead>
+                                    <tr>
+                                        <th scope="col">Environment</th>
+                                        <th scope="col">Hosting model</th>
+                                        <th scope="col">Runtime expectation</th>
+                                        <th scope="col">Database model</th>
+                                        <th scope="col">Storage folder</th>
+                                        <th scope="col">State</th>
+                                        <th scope="col">Status</th>
+                                    </tr>
+                                </thead>
+                                <tbody data-admin-system-health-environment-comparison-rows>
+                                    <tr><td>Environment comparison</td><td>Reference-only</td><td>Waiting for safe API status</td><td>Reference-only</td><td>Reference-only</td><td>Unavailable</td><td data-health-status="PENDING" title="Reason: environment comparison has not loaded yet." aria-label="PENDING: environment comparison has not loaded yet.">PENDING</td></tr>
+                                </tbody>
+                            </table>
+                        </div>
                         <div class="table-wrapper">
                             <table class="data-table" aria-label="Environment capabilities">
                                 <caption>Environment Capabilities</caption>

diff --git a/assets/theme-v2/js/admin-system-health.js b/assets/theme-v2/js/admin-system-health.js
@@ -69,6 +69,7 @@ class AdminSystemHealthController {
         this.historyRows = root.querySelector("[data-admin-system-health-history-rows]");
         this.apiContractRows = root.querySelector("[data-admin-system-health-api-contract-rows]");
         this.apiRegistryRows = root.querySelector("[data-admin-system-health-api-registry-rows]");
+        this.environmentComparisonRows = root.querySelector("[data-admin-system-health-environment-comparison-rows]");
         this.capabilityRows = root.querySelector("[data-admin-system-health-capability-rows]");
         this.featureFlagRows = root.querySelector("[data-admin-system-health-feature-flag-rows]");
         this.actionRows = root.querySelector("[data-admin-system-health-action-rows]");
@@ -160,6 +161,7 @@ class AdminSystemHealthController {
         this.renderPostgresMetricsPending(reason);
         this.renderStoragePending(reason);
         this.renderRuntimeHealthPending(reason);
+        this.renderEnvironmentComparisonPending(reason);
         this.renderEnvironmentCapabilitiesPending(reason);
         this.renderApiContractPending(reason);
         this.renderAdminApiRegistryPending(reason);
@@ -203,6 +205,53 @@ class AdminSystemHealthController {
         this.setEnvironmentStatus("lastHealthCheck", environmentIdentity.lastHealthCheck ? "PASS" : "WARN", reason);
     }
 
+    renderEnvironmentComparisonPending(reason) {
+        if (!this.environmentComparisonRows) {
+            return;
+        }
+        const row = document.createElement("tr");
+        row.append(
+            this.createCell("Environment comparison"),
+            this.createCell("Reference-only"),
+            this.createCell("not available"),
+            this.createCell("Reference-only"),
+            this.createCell("Reference-only"),
+            this.createCell("Unavailable"),
+            this.createStatusCell("PENDING", reason),
+        );
+        this.environmentComparisonRows.replaceChildren(row);
+    }
+
+    renderEnvironmentComparison(environmentComparison = {}) {
+        if (!this.environmentComparisonRows) {
+            return;
+        }
+        if (environmentComparison?.secretsExposed === true || environmentComparison?.secretEditingAllowed === true) {
+            this.renderEnvironmentComparisonPending("Safe environment comparison response was blocked because it exposed secret controls.");
+            return;
+        }
+        const rows = Array.isArray(environmentComparison.rows) ? environmentComparison.rows : [];
+        if (!rows.length) {
+            this.renderEnvironmentComparisonPending("Safe Admin System Health API returned no environment comparison rows.");
+            return;
+        }
+        const fragment = document.createDocumentFragment();
+        rows.forEach((comparisonRow) => {
+            const row = document.createElement("tr");
+            row.append(
+                this.createCell(comparisonRow.displayName),
+                this.createCell(comparisonRow.hostingModel),
+                this.createCell(comparisonRow.runtimeExpectation),
+                this.createCell(comparisonRow.databaseModel),
+                this.createCell(comparisonRow.storageFolder),
+                this.createCell(comparisonRow.state),
+                this.createStatusCell(comparisonRow.status, comparisonRow.summary || environmentComparison.message),
+            );
+            fragment.append(row);
+        });
+        this.environmentComparisonRows.replaceChildren(fragment);
+    }
+
     renderStoragePending(reason) {
         ["bucket", "list", "upload", "read", "delete", "lastChecked"].forEach((key) => {
             this.setStorageStatus(key, "PENDING", reason);
@@ -893,6 +942,7 @@ class AdminSystemHealthController {
             return;
         }
         this.renderEnvironmentIdentity(data?.environmentIdentity || {});
+        this.renderEnvironmentComparison(data?.environmentComparison || {});
         this.renderPostgresStatus(data?.databaseStatus || {});
         this.renderStartupDiagnostics(data?.localApiStartup || {});
         this.renderStorageStatus(data?.storageStatus || {});

diff --git a/docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison.md b/docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison.md
@@ -0,0 +1,33 @@
+# PR_26177_CHARLIE_031-environment-health-comparison
+
+Team: Charlie
+Branch: pr/26177-CHARLIE-031-environment-health-comparison
+Base: pr/26177-CHARLIE-030-r2-storage-health-expanded-validation
+Lifecycle: Build / Validation
+Repair: Rebased onto repaired PR_26177_CHARLIE_030 branch on 2026-06-25.
+
+## Scope
+- Added a server-owned Environment Health Comparison payload and System Health table.
+- Shows Local (VS Code), DEV, IST, UAT, and PROD as a reference comparison view.
+- Marks only the current deployment as actively checked; peer environments are reference-only Not Configured or Unavailable.
+
+## Changed Files
+- admin/system-health.html
+- assets/theme-v2/js/admin-system-health.js
+- src/dev-runtime/server/local-api-router.mjs
+- tests/api/admin-system-health/contract.test.mjs
+- tests/dev-runtime/AdminHealthOperations.test.mjs
+- tests/playwright/tools/AdminHealthOperationsPage.spec.mjs
+- docs_build/dev/reports/coverage_changed_js_guardrail.txt
+- docs_build/dev/reports/playwright_v8_coverage_report.txt
+
+## Validation
+- PASS: node --check src/dev-runtime/server/local-api-router.mjs
+- PASS: node --check assets/theme-v2/js/admin-system-health.js
+- PASS: node --test tests/api/admin-system-health/contract.test.mjs
+- PASS: node --test tests/dev-runtime/AdminHealthOperations.test.mjs
+- PASS: npx playwright test tests/playwright/tools/AdminHealthOperationsPage.spec.mjs --workers=1 --reporter=line
+- PASS: git diff --check
+
+## ZIP
+- Generated after repair: C:\Users\DavidQ\Documents\GitHub\HTML-JavaScript-Gaming\tmp\PR_26177_CHARLIE_031-environment-health-comparison_delta.zip
diff --git a/...reports/PR_26177_CHARLIE_031-environment-health-comparison_branch-validation.md b/...reports/PR_26177_CHARLIE_031-environment-health-comparison_branch-validation.md
@@ -0,0 +1,17 @@
+# PR_26177_CHARLIE_031-environment-health-comparison Branch Validation
+
+Branch: pr/26177-CHARLIE-031-environment-health-comparison
+Expected stack base: pr/26177-CHARLIE-030-r2-storage-health-expanded-validation
+Current status at validation:
+## pr/26177-CHARLIE-031-environment-health-comparison
+Updated onto repaired PR_26177_CHARLIE_030 stack base.
+
+Result: PASS
+
+Checks:
+- PASS: Branch created from PR 030 branch for the approved stacked chain.
+- PASS: Active branch matches PR identity.
+- PASS: Worktree contained only scoped PR changes and generated validation reports.
+- PASS: Branch is based on repaired PR 030 branch.
+- PASS: Rebase conflict scope was generated report artifacts only.
+- PASS: No start_of_day files modified.
diff --git a/...s/PR_26177_CHARLIE_031-environment-health-comparison_manual-validation-notes.md b/...s/PR_26177_CHARLIE_031-environment-health-comparison_manual-validation-notes.md
@@ -0,0 +1,9 @@
+# PR_26177_CHARLIE_031-environment-health-comparison Manual Validation Notes
+
+- Confirmed Environment Health Comparison appears as a reference-only table.
+- Confirmed DEV current deployment shows Current in the Playwright environment.
+- Confirmed peer rows show Not Configured or Unavailable and are not actively checked.
+- Confirmed PROD displays with R2 /prd without changing the existing PRD Environment Map.
+- Confirmed no secrets or peer-environment health probes are exposed.
+- Confirmed branch repair conflict was limited to generated report artifacts.
+- Confirmed no start_of_day files changed.
diff --git a/...ts/PR_26177_CHARLIE_031-environment-health-comparison_requirements-checklist.md b/...ts/PR_26177_CHARLIE_031-environment-health-comparison_requirements-checklist.md
@@ -0,0 +1,12 @@
+# PR_26177_CHARLIE_031-environment-health-comparison Requirement Checklist
+
+- PASS: Added a single System Health comparison view.
+- PASS: Includes Local (VS Code), DEV, IST, UAT, and PROD.
+- PASS: Shows clear state/status indicators per environment.
+- PASS: Local (VS Code) represents local static server/API/developer runtime expectations.
+- PASS: Unavailable or non-current environments do not have to pass.
+- PASS: No silent defaults; peer rows explicitly show Not Configured or Unavailable.
+- PASS: No cross-environment active checks added.
+- PASS: Browser UI consumes API/service contract.
+- PASS: No unrelated files or start_of_day files modified.
+- PASS: Rebased onto repaired PR_26177_CHARLIE_030 branch.
diff --git a/...v/reports/PR_26177_CHARLIE_031-environment-health-comparison_validation-lane.md b/...v/reports/PR_26177_CHARLIE_031-environment-health-comparison_validation-lane.md
@@ -0,0 +1,21 @@
+# PR_26177_CHARLIE_031-environment-health-comparison Validation Lane Report
+
+Impacted lanes:
+- runtime: Local API Admin System Health status payload.
+- contract: Admin System Health API contract tests.
+- UI: Admin System Health Theme V2 table rendering.
+- Playwright: targeted Admin System Health page spec.
+
+Commands:
+- PASS: node --check src/dev-runtime/server/local-api-router.mjs
+- PASS: node --check assets/theme-v2/js/admin-system-health.js
+- PASS: node --test tests/api/admin-system-health/contract.test.mjs
+- PASS: node --test tests/dev-runtime/AdminHealthOperations.test.mjs
+- PASS: npx playwright test tests/playwright/tools/AdminHealthOperationsPage.spec.mjs --workers=1 --reporter=line
+- PASS: git diff --check
+
+Skipped lanes:
+- Full samples smoke skipped; comparison view is Admin System Health only.
+- Full Project Workspace suite skipped; targeted Admin/System Health coverage was sufficient.
+
+Result: PASS
diff --git a/docs_build/dev/reports/codex_changed_files.txt b/docs_build/dev/reports/codex_changed_files.txt
@@ -1,45 +1,44 @@
-# git diff --name-only pr/26177-CHARLIE-029-system-health-postgres-metrics-panel --
+# git diff --name-only pr/26177-CHARLIE-030-r2-storage-health-expanded-validation --
 admin/system-health.html
 assets/theme-v2/js/admin-system-health.js
-docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation.md
-docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_branch-validation.md
-docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_manual-validation-notes.md
-docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_requirements-checklist.md
-docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_validation-lane.md
+docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison.md
+docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_branch-validation.md
+docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_manual-validation-notes.md
+docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_requirements-checklist.md
+docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_validation-lane.md
 docs_build/dev/reports/codex_changed_files.txt
 docs_build/dev/reports/codex_review.diff
 docs_build/dev/reports/coverage_changed_js_guardrail.txt
 docs_build/dev/reports/playwright_v8_coverage_report.txt
-src/api/admin-system-health-api-client.js
 src/dev-runtime/server/local-api-router.mjs
 tests/api/admin-system-health/contract.test.mjs
 tests/dev-runtime/AdminHealthOperations.test.mjs
 tests/playwright/tools/AdminHealthOperationsPage.spec.mjs
 
 # git status --short
- M docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation.md
- M docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_branch-validation.md
- M docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_manual-validation-notes.md
- M docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_requirements-checklist.md
- M docs_build/dev/reports/PR_26177_CHARLIE_030-r2-storage-health-expanded-validation_validation-lane.md
+ M docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison.md
+ M docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_branch-validation.md
+ M docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_manual-validation-notes.md
+ M docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_requirements-checklist.md
+ M docs_build/dev/reports/PR_26177_CHARLIE_031-environment-health-comparison_validation-lane.md
  M docs_build/dev/reports/codex_review.diff
+ M docs_build/dev/reports/coverage_changed_js_guardrail.txt
  M docs_build/dev/reports/playwright_v8_coverage_report.txt
 
-# git diff --stat pr/26177-CHARLIE-029-system-health-postgres-metrics-panel --
- admin/system-health.html                           |  13 +-
- assets/theme-v2/js/admin-system-health.js          |  41 +-
- ...IE_030-r2-storage-health-expanded-validation.md |  35 +
- ...health-expanded-validation_branch-validation.md |  17 +
- ...-expanded-validation_manual-validation-notes.md |   9 +
- ...h-expanded-validation_requirements-checklist.md |  13 +
- ...e-health-expanded-validation_validation-lane.md |  22 +
- docs_build/dev/reports/codex_changed_files.txt     |  70 +-
- docs_build/dev/reports/codex_review.diff           | 988 +++++++++++----------
- .../dev/reports/coverage_changed_js_guardrail.txt  |   6 +-
- .../dev/reports/playwright_v8_coverage_report.txt  |  17 +-
- src/api/admin-system-health-api-client.js          |   4 +
- src/dev-runtime/server/local-api-router.mjs        | 105 ++-
- tests/api/admin-system-health/contract.test.mjs    |  19 +
- tests/dev-runtime/AdminHealthOperations.test.mjs   |   6 +
- .../tools/AdminHealthOperationsPage.spec.mjs       |   8 +-
- 16 files changed, 851 insertions(+), 522 deletions(-)
+# git diff --stat pr/26177-CHARLIE-030-r2-storage-health-expanded-validation --
+ admin/system-health.html                           |  20 +
+ assets/theme-v2/js/admin-system-health.js          |  50 ++
+ ...77_CHARLIE_031-environment-health-comparison.md |  33 +
+ ...ironment-health-comparison_branch-validation.md |  17 +
+ ...nt-health-comparison_manual-validation-notes.md |   9 +
+ ...ent-health-comparison_requirements-checklist.md |  12 +
+ ...nvironment-health-comparison_validation-lane.md |  21 +
+ docs_build/dev/reports/codex_changed_files.txt     |  71 +--
+ docs_build/dev/reports/codex_review.diff           | 663 +--------------------
+ .../dev/reports/coverage_changed_js_guardrail.txt  |   3 +-
+ .../dev/reports/playwright_v8_coverage_report.txt  |   8 +-
+ src/dev-runtime/server/local-api-router.mjs        |  76 +++
+ tests/api/admin-system-health/contract.test.mjs    |  13 +
+ tests/dev-runtime/AdminHealthOperations.test.mjs   |   9 +
+ .../tools/AdminHealthOperationsPage.spec.mjs       |  11 +
+ 15 files changed, 305 insertions(+), 711 deletions(-)