chore: prepare release v2.12.0

- Update CHANGELOG.md with v2.12.0 release notes (2025-12-12)
- Update CLI version to 2.12.0 in Application.php
- Add MSSQL system schema filtering for better performance
- Update version links in CHANGELOG.md

Major features:
- Added optimize command (analyze, structure, logs, query)
- Added AI-powered database analysis (ai query, schema, optimize)
- Support for 6 AI providers (OpenAI, Anthropic, Google, Microsoft, DeepSeek, Yandex)
- Performance optimizations (~25% faster schema analysis)
- Test reliability improvements

Author: tommyknocker

CHANGELOG.md

@@ -7,6 +7,82 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.12.0] - 2025-12-12
+
+### Added
+- **Optimize Command** (`pdodb optimize`) - Comprehensive database optimization tool:
+  - `pdodb optimize analyze` - Analyze database schema for optimization opportunities
+  - `pdodb optimize structure` - Analyze specific table structure
+  - `pdodb optimize logs` - Analyze slow query logs
+  - `pdodb optimize query` - Analyze and optimize specific SQL queries
+  - Detects missing indexes, redundant indexes, missing foreign key indexes
+  - Suggests indexes for common patterns (soft delete, status columns, timestamps)
+  - Identifies large tables that may benefit from partitioning
+  - Provides detailed statistics and recommendations
+  - Support for JSON, table, and YAML output formats
+
+- **AI-Powered Database Analysis** (`pdodb ai`) - Intelligent database optimization with AI:
+  - `pdodb ai query <sql>` - Get AI-powered query analysis and optimization suggestions
+  - `pdodb ai schema [table]` - Analyze database schema with AI recommendations
+  - `pdodb ai optimize` - AI-powered database optimization suggestions
+  - Automatic EXPLAIN plan integration for better AI analysis
+  - Support for multiple AI providers:
+    - **OpenAI** (GPT-4, GPT-3.5-turbo, GPT-4-turbo)
+    - **Anthropic** (Claude 3 Opus, Sonnet, Haiku)
+    - **Google** (Gemini Pro, Gemini Pro Vision)
+    - **Microsoft Azure OpenAI** (GPT-4, GPT-3.5-turbo)
+    - **DeepSeek** (DeepSeek Chat, DeepSeek Coder)
+    - **Yandex Cloud GPT** (YandexGPT, YandexGPT Lite)
+  - Configurable temperature, max_tokens, and timeout settings
+  - Progress indicators for long-running AI requests
+  - Integration with `explainAiAdvice()` method in QueryBuilder
+
+- **AI Provider Configuration**:
+  - Support for temperature, max_tokens, and timeout configuration for all AI providers
+  - Improved error handling and response parsing
+  - Enhanced markdown formatting in AI responses
+  - AI configuration options in `pdodb init` command
+
+### Changed
+- **Performance Optimizations**:
+  - Optimized `SchemaAnalyzer` to reduce duplicate database queries (~25% faster)
+  - Eliminated redundant `TableManager::info()` and `getForeignKeys()` calls
+  - Optimized `getTableRowCount()` to only execute for tables with detected issues
+  - Removed unnecessary `tableExists()` checks
+  - Added filtering for Oracle system tables (`BIN$%`, `SYS_%`, `DUAL`)
+  - Added filtering for MSSQL system schemas (`sys`, `INFORMATION_SCHEMA`)
+  - Improved test execution time for Oracle optimize tests (32s → 24s)
+
+- **Code Quality**:
+  - Removed `#[RunInSeparateProcess]` attributes from tests
+  - Improved test reliability by throwing exceptions instead of `exit()` in test environment
+  - Better handling of non-interactive mode in CLI commands
+  - Extracted magic numbers to constants in AI providers
+
+### Fixed
+- **Test Reliability**:
+  - Fixed blocking input issues in non-interactive test environments
+  - Fixed "risky tests" warnings by properly managing output buffers
+  - Fixed MSSQL test failures in GitHub Actions (environment variable handling)
+  - Fixed Oracle test timeouts and hanging issues
+  - Preserved critical environment variables in test tearDown methods
+  - Improved non-interactive mode detection across all CLI commands
+
+- **AI Command**:
+  - Removed redundant `ai analyze` command (consolidated into `ai query`)
+  - Fixed AI command output formatting
+  - Fixed schema analysis in AI command
+  - Improved Yandex AI provider response handling
+
+- **Database Dialect Fixes**:
+  - Fixed MSSQL `listTables()` to filter system schemas for better performance
+  - Fixed Oracle system table filtering in `listTables()`
+
+### Documentation
+- Updated `composer.json` with AI integration keywords and description
+- Removed references to deprecated `ai analyze` command
+- Updated bash completion script to remove `ai analyze` command
+
 ## [2.11.2] - 2025-12-06
 
 ### Added
@@ -1981,7 +2057,8 @@ Initial tagged release with basic PDO database abstraction functionality.
 
 ---
 
-[Unreleased]: https://github.com/tommyknocker/pdo-database-class/compare/v2.11.2...HEAD
+[Unreleased]: https://github.com/tommyknocker/pdo-database-class/compare/v2.12.0...HEAD
+[2.12.0]: https://github.com/tommyknocker/pdo-database-class/compare/v2.11.2...v2.12.0
 [2.11.2]: https://github.com/tommyknocker/pdo-database-class/compare/v2.11.1...v2.11.2
 [2.11.1]: https://github.com/tommyknocker/pdo-database-class/compare/v2.11.0...v2.11.1
 [2.11.0]: https://github.com/tommyknocker/pdo-database-class/compare/v2.10.3...v2.11.0

src/cli/Application.php

@@ -267,7 +267,7 @@ protected function detectVersion(): string
         }
 
         // Ultimate fallback
-        return '2.11.1';
+        return '2.12.0';
     }
 
     /**
@@ -277,7 +277,7 @@ protected function detectVersion(): string
      */
     public function getVersion(): string
     {
-        return $this->version ?? '2.11.2';
+        return $this->version ?? '2.12.0';
     }
 
     /**

src/dialects/mssql/MSSQLDialect.php

@@ -2043,8 +2043,23 @@ public function getSlowQueries(PdoDb $db, float $thresholdSeconds, int $limit):
      */
     public function listTables(PdoDb $db, ?string $schema = null): array
     {
+        // Filter out system schemas for better performance
+        // Exclude sys, INFORMATION_SCHEMA, and other system schemas
+        $sql = "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES 
+                WHERE TABLE_TYPE='BASE TABLE' 
+                AND TABLE_SCHEMA NOT IN ('sys', 'INFORMATION_SCHEMA')";
+        
+        if ($schema !== null) {
+            $sql .= " AND TABLE_SCHEMA = :schema";
+            $params = [':schema' => $schema];
+        } else {
+            $params = [];
+        }
+        
+        $sql .= " ORDER BY TABLE_NAME";
+        
         /** @var array<int, array<string, mixed>> $rows */
-        $rows = $db->rawQuery("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE' ORDER BY TABLE_NAME");
+        $rows = $db->rawQuery($sql, $params);
         /** @var array<int, string> $names */
         $names = array_map(static fn (array $r): string => (string)$r['TABLE_NAME'], $rows);
         return $names;