Add visual console command for terminal-based database table browsing

[Copilot]

Implements a terminal UI alternative to REPL for browsing database tables without writing code. Addresses user requirement: "提供一个极简的控制台，让用户可以可视化的操作数据库里面的表，而不是用repl"

Implementation

New Command

• objectql console (alias: c) - Launches blessed-based TUI with split-pane layout
• Left panel: object/table list, right panel: paginated data grid (20 rows/page)
• Detail overlay: press Enter on any row to view full record
• Keyboard nav: ↑↓/jk navigate, Tab switch panes, n/p page, r refresh, ? help

Architecture

• Uses ObjectRepository with system context (same privilege model as REPL)
• Lazy-loads data on object selection, caches current page
• Config file discovery matches existing CLI commands (objectql.config.ts/js)

Dependencies

• Added blessed@^0.1.81 and blessed-contrib@^4.11.0 to CLI package

Usage

objectql console

# Navigate to "projects" object → see paginated table
# Press Enter on row 2 → detail overlay shows all fields
# Press Escape → back to table, press q → quit

Files Changed

• packages/cli/src/commands/console.ts - Core implementation (426 lines)
• packages/cli/src/index.ts - Command registration
• packages/cli/package.json - Dependencies
• Documentation: docs/console.md, docs/guide/cli.md, READMEs

Visual comparison: REPL requires JavaScript knowledge; console exposes data through direct visual browsing.

Original prompt

我希望能提供一个极简的控制台，让用户可以可视化的操作数据库里面的表，而不是用repl

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[Copilot]

Pull request overview

This PR implements a terminal-based visual console command (objectql console) as an alternative to the REPL for browsing database tables. The feature addresses a user requirement for a visual interface to operate database tables without writing code.

Changes:

• Added new console command to CLI with blessed-based TUI featuring split-pane layout, pagination, and keyboard navigation
• Added comprehensive documentation including user guide, demo screenshots, and updated CLI documentation
• Included example initialization script for sample data to demonstrate the console functionality

Reviewed changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
packages/cli/src/commands/console.ts	Core implementation of visual console with blessed UI framework (426 lines)
packages/cli/src/index.ts	Command registration for new console command with alias 'c'
packages/cli/package.json	Added blessed and blessed-contrib dependencies for terminal UI
packages/cli/README.md	Documentation for console command usage and keyboard shortcuts
docs/console.md	Comprehensive user guide for visual console feature
docs/console-demo.md	ASCII art demo screenshots showing console interface
docs/guide/cli.md	Updated CLI guide with console command section
examples/basic-app/init-data.ts	Sample data initialization script for testing console
examples/basic-app/package.json	Added console script and ts-node dependency
README.md	Updated roadmap to mark Phase 4.5 (Visual Console) as complete
CONSOLE_IMPLEMENTATION.md	Implementation summary and technical details
pnpm-lock.yaml	Lock file updates for new blessed dependencies

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported