chore: install openagent opencode

Signed-off-by: Dmytro Stanchiev <git@dmytros.dev>

.opencode/context/core/task-management/navigation.md

@@ -0,0 +1,66 @@
+<!-- Context: core/navigation | Priority: critical | Version: 1.0 | Updated: 2026-02-15 -->
+
+# Task Management Navigation
+
+**Purpose**: JSON-driven task breakdown and tracking system
+
+**Last Updated**: 2026-02-14
+
+---
+
+## Structure
+
+```
+core/task-management/
+├── navigation.md
+├── standards/
+│   ├── task-schema.md           # Base JSON schema (v1.0)
+│   └── enhanced-task-schema.md  # Extended schema (v2.0) - line precision, domain modeling, contracts
+├── guides/
+│   ├── splitting-tasks.md       # Task decomposition
+│   └── managing-tasks.md        # Workflow guide
+└── lookup/
+    └── task-commands.md         # CLI script reference
+```
+
+---
+
+## Quick Routes
+
+| Task | Path | Priority |
+|------|------|----------|
+| **Understand base schema** | `standards/task-schema.md` | ⭐⭐⭐⭐⭐ |
+| **Use enhanced features** | `standards/enhanced-task-schema.md` | ⭐⭐⭐⭐ |
+| **Split a feature** | `guides/splitting-tasks.md` | ⭐⭐⭐⭐⭐ |
+| **Manage task lifecycle** | `guides/managing-tasks.md` | ⭐⭐⭐⭐ |
+| **Use CLI commands** | `lookup/task-commands.md` | ⭐⭐⭐⭐ |
+
+---
+
+## Loading Strategy
+
+### For Creating Basic Tasks:
+1. Load `standards/task-schema.md` (understand base structure)
+2. Load `guides/splitting-tasks.md` (decomposition approach)
+3. Reference `lookup/task-commands.md` (validate after creation)
+
+### For Multi-Stage Orchestration:
+1. Load `standards/enhanced-task-schema.md` (advanced features)
+2. Load `standards/task-schema.md` (base structure reference)
+3. Load `guides/splitting-tasks.md` (decomposition approach)
+4. Reference planning agents: ArchitectureAnalyzer, StoryMapper, PrioritizationEngine, ContractManager, ADRManager
+
+### For Managing Tasks:
+1. Load `guides/managing-tasks.md` (workflow)
+2. Reference `lookup/task-commands.md` (CLI usage)
+
+---
+
+## Related
+
+- **Active tasks** → `.tmp/tasks/{feature}/` (at project root)
+- **Completed tasks** → `.tmp/tasks/completed/{feature}/`
+- **TaskManager agent** → `.opencode/agent/subagents/core/task-manager.md`
+- **Planning agents** → `.opencode/agent/subagents/planning/` (ArchitectureAnalyzer, StoryMapper, PrioritizationEngine, ContractManager, ADRManager)
+- **Multi-stage workflow** → `../workflows/multi-stage-orchestration.md`
+- **Core navigation** → `../navigation.md`