Implement context command - Quick project status lookup

[jordanpartridge]

Overview

Create context command for quick understanding of current project state.

Purpose

Replaces multiple search commands with single lookup showing what's happening NOW.

Acceptance Criteria

• Shows last 3 user intents for current project
• Shows current git branch + status
• Shows unresolved blockers
• Shows open PRs/issues
• Optional --full flag for detailed output
• 100% test coverage
• Passes PHPStan level 8

Agent Team Workflow

1. Architect Agent: Design context aggregation strategy
2. Test Writer Agent: Define expected output contracts
3. Implementation Agent: Build feature to spec

Data Sources

• Entry model (user-intent tags)
• Git status (Process facade)
• GitHub API (gh cli)

[jordanpartridge]

Strategic pivot: Closed as part of migration to AI-first semantic context engine. Productivity tracking replaced with pure vector storage + intelligent search. See MISSION.md in commit 641d7b4