fix: Remove Debug formatting requirement in firecracker DST test

.agentfs/README.md

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+# AgentFS - Agent State Storage
+
+SQLite-backed storage for agent state and audit trail. This directory is git-ignored and contains ephemeral agent memory.
+
+## Database Schema
+
+The `agent.db` SQLite database contains:
+
+### Tables
+
+#### `agent_state`
+Agent's current working context:
+- `key` (TEXT PRIMARY KEY) - State key (e.g., "current_task", "plan")
+- `value` (TEXT) - State value (JSON)
+- `updated_at` (TEXT) - ISO 8601 timestamp
+
+#### `verified_facts`
+Facts verified by execution (not by reading docs):
+- `id` (INTEGER PRIMARY KEY)
+- `claim` (TEXT) - The claim being verified
+- `method` (TEXT) - How it was verified (e.g., "test execution", "cargo clippy")
+- `result` (TEXT) - The verification result (JSON)
+- `verified_at` (TEXT) - ISO 8601 timestamp
+
+#### `audit_log`
+Audit trail of all tool calls:
+- `id` (INTEGER PRIMARY KEY)
+- `timestamp` (TEXT) - ISO 8601 timestamp
+- `tool` (TEXT) - Tool name
+- `args` (TEXT) - Tool arguments (JSON)
+- `result` (TEXT) - Tool result (JSON)
+- `git_sha` (TEXT) - Git SHA at time of call
+
+## Inspecting the Database
+
+```bash
+# Open SQLite shell
+sqlite3 .agentfs/agent.db
+
+# View current task
+SELECT * FROM agent_state WHERE key = 'current_task';
+
+# View recent verified facts
+SELECT claim, method, verified_at FROM verified_facts ORDER BY verified_at DESC LIMIT 10;
+
+# View audit log
+SELECT timestamp, tool, args FROM audit_log ORDER BY timestamp DESC LIMIT 20;
+```
+
+## Usage via MCP Tools
+
+(Phase 4 - not yet implemented)
+
+```javascript
+// Get state
+mcp.state_get('current_task')
+
+// Set state
+mcp.state_set('current_task', {description: 'Building indexes', phase: 1})
+
+// Start task
+mcp.state_task_start('Build symbol index')
+
+// Store verified fact
+mcp.state_verified_fact('All tests pass', 'cargo test', {exit_code: 0, tests_run: 74})
+
+// Complete task
+mcp.state_task_complete({proof: 'test_output_sha256'})
+```
+
+## Maintenance
+
+This database is ephemeral and can be deleted at any time. It will be recreated automatically. The database should be git-ignored.