155 lines
14 KiB
Markdown
155 lines
14 KiB
Markdown
# ModernAdminStudio - Static Analysis, Security & Compatibility Audit Report
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**Generated Date**: 2026-10-22
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**Target Environment**: Dual-Compatibility (Windows PowerShell 5.1 & PowerShell 7.6+)
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**Test Suite Coverage**: 6 Test Suites, 96 Test Specs, 100% Pass Rate
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---
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## 1. Executive Summary
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This audit report documents the static analysis findings (via PSScriptAnalyzer), architecture hardening, bug remediation, security evaluation, and dual-runtime verification performed on **ModernAdminStudio**.
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ModernAdminStudio is an enterprise administration workstation integrating Active Directory (AD), NetApp ONTAP Storage, and Microsoft SQL Server operations into an asynchronous WPF management console. Prior to this engagement, the codebase contained latent scoping and parsing defects, non-resilient multi-DC directory binds, variable expansion failures under Unicode/Korean script strings, unhandled empty/wildcard token matching, and untested modal dialog execution.
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Through systematic remediation and construction of an automated Pester test suite (`Tests/`), the codebase achieved:
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- **96 out of 96 automated tests passing (100% success rate)** across both Windows PowerShell 5.1 and PowerShell 7.6+.
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- **Zero fatal syntax or scope bugs**.
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- **Complete standalone fallback execution**: `Tests/RunAllTests.ps1` runs both via standard Pester v5+ and via an autonomous embedded test engine when Pester v5 is not installed.
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- Full compliance with UTF-8 with BOM (`0xEF, 0xBB, 0xBF`) encoding across all 14 `.ps1` repository scripts.
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---
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## 2. PSScriptAnalyzer Static Analysis & Audit Metrics
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### 2.1 Audit Findings Summary
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| Severity | Count | Categorization | Status / Disposition |
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| :--- | :---: | :--- | :--- |
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| **Error** | 13 | `PSAvoidUsingUsernameAndPasswordParams` in `NetAppService.ps1` & `SqlService.ps1` | Documented as architectural risk; flagged for PSCredential migration in v2. |
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| **Warning** | 10 | `PSAvoidUsingPlainTextForPassword` in storage/database credentials | Documented with DPAPI encryption / SecureString roadmap. |
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| **Warning** | 4 | `PSUseSingularNouns`, `PSUseApprovedVerbs` (`Invoke-SqlQuerySnippet`, `Resolve-UsersWithAmbiguityCheck`) | Retained for backward compatibility with existing UI bindings. |
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| **Warning** | 0 | `PSReviewUnusedParameter` in `ShareSyncService.ps1` | **Resolved**: Parameter `Config` properly utilized in live mode checks. |
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| **Warning** | 0 | `PSUseDeclaredVarsMoreThanAssignments` across modules & tests | **Resolved**: Cleaned up all redundant declarations and unused variables. |
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| **Warning** | 1 | `PSUseBOMForUnicodeEncodedFile` | **Resolved**: Enforced UTF-8 BOM across all 14 `.ps1` scripts. |
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| **Information** | 22 | `PSAvoidTrailingWhitespace` | Cosmetic formatting. |
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---
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## 3. Critical Bugs Identified & Resolved
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### 3.1 Empty Token & Wildcard Filter Explosion (`Modules/UserResolverService.ps1`)
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- **Defect**: When passed an empty or whitespace token `""` or `*`, `Where-Object { $_.DisplayName -like "*$token*" }` evaluated to `$_DisplayName -like "**"`, matching every user in the directory pool and producing duplicate ambiguous candidate rows for nonexistent inputs.
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- **Remediation**: Added `[string]::IsNullOrWhiteSpace($rawToken)` validation and replaced wildcard `-like` comparison with `.IndexOf($token, [System.StringComparison]::OrdinalIgnoreCase) -ge 0`, ensuring literal matching without unintentional pattern expansion.
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- **Verification**: `UserResolverService.Tests.ps1` asserts that whitespace tokens yield 0 matches and wildcard `*` safely resolves to 1 "Not Found" record.
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### 3.2 WPF Border Property Mismatch (`Start-App.ps1` & `MainWindow.xaml`)
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- **Defect**: In `Update-ModeBadgeUI`, `$dotGlobalStatus.Fill = ...` was called. However, `DotGlobalStatus` in `MainWindow.xaml` is a `<Border>` element (which requires `.Background`), throwing `RuntimeException: The object does not have property 'Fill'` during initialization.
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- **Remediation**: Changed property assignment to `$dotGlobalStatus.Background = [System.Windows.Media.BrushConverter]::new().ConvertFromString($dotColor)`.
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- **Verification**: `BatchPipeline.Tests.ps1` verifies `Navigate-ToPage` across all 7 views and `Start-App.ps1 -NoShow` without UI runtime errors.
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### 3.3 LDAPS Port Scoping Failure (`Modules/ADService.ps1`)
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- **Defect**: String interpolation `"LDAP://$DomainController:636"` and `"LDAP://$dc:636"` parsed `$DomainController:` and `$dc:` as variable scope prefixes (similar to `$env:` or `$script:`). In PowerShell, this evaluates to an empty string, yielding malformed LDAP URIs: `"LDAP://:636"`.
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- **Remediation**: Encapsulated variable identifiers with curly braces: `"LDAP://${DomainController}:636"` and `"LDAP://${dc}:636"`.
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- **Verification**: `ADService.Tests.ps1` validates LDAP/LDAPS URI formation on port 389 and 636 across custom DCs and default base OUs.
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### 3.4 Single-Token Array Unrolling in User Parsing (`Modules/UserResolverService.ps1`)
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- **Defect**: In PowerShell 5.1 pipeline and function returns, single-element arrays automatically unroll to scalar objects. When `Parse-MultiUserInput` was passed a single token (e.g. `"gdhong"`), it returned a `[string]` scalar rather than an array. In downstream loops (`foreach ($t in $tokens)`), PowerShell iterated over every character (`'g'`, `'d'`, `'h'`, etc.), causing multi-user resolution pipelines to catastrophically misidentify input as invalid single-character usernames.
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- **Remediation**: Guarded array returns using the unary comma operator: `return ,$uniqueTokens`.
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- **Verification**: `UserResolverService.Tests.ps1` tests single-token inputs, verifying array length 1 and successful single-token resolution.
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### 3.5 Korean String Interpolation & Unicode Identifiers (`Start-App.ps1` & `NetAppService.ps1`)
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- **Defect**: In PowerShell double-quoted strings (e.g., `"$normCount건"`, `"$ambCount건"`, `"$MaxRetries회"`), Unicode Korean characters (`건`, `회`) are legal identifier characters per Unicode variable naming rules. PowerShell evaluated `$normCount건` as a non-existent variable yielding `$null`, resulting in log and message box outputs like `"정상: / 확인필요: / 미발견: "` with blank numbers.
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- **Remediation**: Explicitly interpolated expressions using subexpression syntax: `"$($normCount)건"`, `"$($ambCount)건"`, `"$($MaxRetries)회"`.
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- **Verification**: `BatchPipeline.Tests.ps1` and `NetAppService.Tests.ps1` explicitly verify Korean summary string outputs.
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### 3.6 Fake Mock Logic in Storage Tests (`Tests/NetAppService.Tests.ps1`)
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- **Defect**: Earlier test iterations copy-pasted extraction and sorting code directly into test blocks rather than executing the actual `Get-NetAppActiveDc` function.
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- **Remediation**: Replaced inline logic with `Mock Invoke-NetAppRestRequest` and direct invocation of `Get-NetAppActiveDc -UseLive $true`, validating all 4 REST schema formats (`server_name`, `name`, `server`, `server_ip`), preference weighting (`preferred` > `favored` > `regular`), down-server pruning, and fallback corridors.
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### 3.7 UTF-8 Without BOM vs Windows-949 ANSI Corruption (`Modules/*.ps1`)
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- **Defect**: Windows PowerShell 5.1 defaults to the system ANSI code page (Windows-949 on Korean Windows installations) when reading `.ps1` files lacking a Byte Order Mark (BOM). Multi-byte UTF-8 Korean characters were parsed as invalid ANSI pairs, causing string truncation, unclosed quote literals, and syntax errors during execution.
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- **Remediation**: Converted and verified all 14 `.ps1` files to **UTF-8 with BOM (`0xEF, 0xBB, 0xBF`)**.
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- **Verification**: Byte-header verification script executed in CI runner confirming `HasBom = True` across 100% of `.ps1` files.
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---
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## 4. Security Audit & Hardening
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### 4.1 MS SQL Windows Authentication Impersonation (`Modules/SqlService.ps1`)
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- **Implementation**: `WinAuthUniversalImpersonator` C# P/Invoke class utilizing Win32 `Advapi32.dll!LogonUserW` with `LOGON32_LOGON_NEW_CREDENTIALS` (Logon Type 9) and `LOGON32_PROVIDER_DEFAULT` (Provider 0).
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- **Security Strengths**:
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1. **No Kerberos/NTLM Traffic to DC at Logon Time**: Type 9 creates an outbound-only (`/netonly`) credential token locally without validating against domain controllers during process logon. Network authentication is only negotiated when socket connections are opened to target SQL instances.
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2. **Thread-Safe Scoped Impersonation**: Uses `WindowsIdentity.Impersonate()` within a try-finally construct, guaranteeing `WindowsImpersonationContext.Undo()` is invoked even if SQL exceptions occur.
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3. **Leak Prevention**: Safe token handle release using Win32 `Kernel32.dll!CloseHandle`.
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- **Verification**: `SqlService.Tests.ps1` validates type compilation, constants (`LOGON32_LOGON_NEW_CREDENTIALS = 9`), handle acquisition, action execution under impersonated scope, and exception propagation.
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### 4.2 Credential Handling Analysis & Recommendations
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- **Current Architecture**: The application accepts plaintext `Password` parameters in NetApp and SQL modules to support automated headless scripting and quick administrative tasks.
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- **Vulnerabilities**: Plaintext passwords in memory or config files could be exposed via heap inspections, process memory dumps, or unencrypted `config.json` storage.
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- **Recommendations for Production**:
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1. Migrate all parameters from `[string]$Password` to `[System.Security.SecureString]` or `[pscredential]`.
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2. Store database and storage credentials using Windows DPAPI (`Export-Clixml` / `ConvertFrom-SecureString`) or Azure Key Vault / HashiCorp Vault.
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3. Ensure UI input fields (`PasswordBox`) in WPF never store plaintext in managed CLR strings.
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---
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## 5. Multi-DC Synchronization & Storage Discovery Architecture
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### 5.1 Zero-Lag Target DC Direct Binding
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- **Problem**: In enterprise Active Directory environments with multiple distributed Domain Controllers (e.g., `dc01.corp.local` through `dc06.corp.local`), AD replication topology introduces replication delays (from seconds to 15+ minutes across inter-site links). If an administrator creates a security group on DC01 and immediately attempts to grant CIFS permissions on a NetApp SVM pointing to DC04, the operation fails with `ERROR_NO_SUCH_USER` or `ObjectNotFound`.
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- **Solution**:
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1. `New-ADSecurityGroupOnTargetDc` binds directly to target DC (`LDAP://${TargetDc}:636/${BaseOU}`).
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2. `Sync-ADObjectToTargetDc` triggers immediate single-object replication to target DCs via Active Directory Replication Services before provisioning downstream resources.
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- **Verification**: `ADService.Tests.ps1` validates direct DC binding, multi-site topology partitioning, and single-object replication simulation.
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### 5.2 NetApp Active DC Discovery Schema Resiliency (`Modules/NetAppService.ps1`)
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- **Problem**: NetApp ONTAP REST API `/api/protocols/cifs/domains` returns discovered domain controllers in JSON schemas that differ across ONTAP versions (9.8, 9.10, 9.12+):
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- ONTAP 9.12+: `discovered_servers[].server_name`
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- ONTAP 9.10: `discovered_servers[].name`
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- ONTAP 9.8: `discovered_servers[].server`
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- Fallback / IP-only configurations: `discovered_servers[].server_ip`
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- **Solution**: `Get-NetAppActiveDc` implements adaptive property resolution cascading through:
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`$srv.server_name` -> `$srv.name` -> `$srv.server` -> `$srv.server_ip`.
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It prioritizes servers by state (`state -eq 'ok'`) and preference order (`preferred` > `favored` > `regular`), ignoring down or degraded DCs.
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- **Verification**: `NetAppService.Tests.ps1` tests all 4 schema variants, preference sorting, down-state exclusion, and fallback corridors.
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---
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## 6. End-to-End Batch Pipeline & Headless UI Verification
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### 6.1 Transactional 5-Stage Batch Pipeline (`Tests/BatchPipeline.Tests.ps1`)
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The full infrastructure onboarding batch pipeline was verified headless across 5 sequential stages:
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1. **Stage 1: Multi-Token User Identity Resolution**: Normalizes raw comma/space-delimited input, queries live/mock directory pool, flags duplicates for manual triage.
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2. **Stage 2: Active Directory Account & Security Group Provisioning**: Direct DC binding, zero-replication-lag creation of departmental security groups, and group membership assignment.
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3. **Stage 3: Background Replication to Remaining DCs**: Asynchronous single-object replication across multi-site DCs.
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4. **Stage 4: NetApp CIFS Share & Multi-DC ACL Authorization**: Discovers active DC on storage cluster, creates CIFS share with NTFS security style, binds ACL permissions with smart retry corridor.
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5. **Stage 5: NetApp Quota Adjustment & Audit**: Quota policy provisioning and thread-safe logging.
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### 6.2 Headless Modal Dialog & ShowDialog Execution
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- Added `-AutoConfirm` switch to `Show-UserResolverDialog` to test WPF `ShowDialog()` without blocking execution.
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- Verified modal lifecycle: window instantiation -> data binding -> selection -> DialogResult confirmation -> modal loop exit.
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- Verified dynamic page switching across all 7 views in `Navigate-ToPage`.
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---
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## 7. Dual-Runtime Compatibility Verification Matrix
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Both test suites were executed on the target Windows system with native isolation:
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| Test Suite File | Test Count | Windows PowerShell 5.1 (Desktop) | PowerShell 7.6.0 (Core) | Result |
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| `ConfigService.Tests.ps1` | 7 | **PASS** (100%) | **PASS** (100%) | Verified |
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| `UserResolverService.Tests.ps1` | 15 | **PASS** (100%) | **PASS** (100%) | Verified |
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| `SqlService.Tests.ps1` | 20 | **PASS** (100%) | **PASS** (100%) | Verified |
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| `ADService.Tests.ps1` | 23 | **PASS** (100%) | **PASS** (100%) | Verified |
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| `NetAppService.Tests.ps1` | 20 | **PASS** (100%) | **PASS** (100%) | Verified |
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| `BatchPipeline.Tests.ps1` | 11 | **PASS** (100%) | **PASS** (100%) | Verified |
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| **Total / Summary** | **96** | **96 / 96 (12.85s)** | **96 / 96 (13.84s)** | **100% Pass** |
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## 8. Conclusion & Sign-off
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The `ModernAdminStudio` codebase has been verified against static analysis rules, runtime regressions, encoding pitfalls, and enterprise edge cases. The test runner `Tests/RunAllTests.ps1` provides automated regression gating suitable for continuous integration (CI) or local pre-commit validation.
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