Initial implementation of SwiftDBAI

Chat with any SQLite database using natural language. Built on
AnyLanguageModel (HuggingFace) for LLM-agnostic provider support
and GRDB for SQLite access.

Core features:
- Auto schema introspection from sqlite_master (zero config)
- NL → SQL generation via any AnyLanguageModel provider
- Three rendering modes: text summary, data table, Swift Charts
- Drop-in DataChatView (SwiftUI) and headless ChatEngine
- Operation allowlist with read-only default
- Mutation policy with per-table control
- ToolExecutionDelegate for destructive operation confirmation
- Multi-turn conversation context
- 352 tests across 24 suites, all passing

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -0,0 +1,46 @@
+<!-- ooo:START -->
+<!-- ooo:VERSION:0.14.0 -->
+# Ouroboros — Specification-First AI Development
+
+> Before telling AI what to build, define what should be built.
+> As Socrates asked 2,500 years ago — "What do you truly know?"
+> Ouroboros turns that question into an evolutionary AI workflow engine.
+
+Most AI coding fails at the input, not the output. Ouroboros fixes this by
+**exposing hidden assumptions before any code is written**.
+
+1. **Socratic Clarity** — Question until ambiguity ≤ 0.2
+2. **Ontological Precision** — Solve the root problem, not symptoms
+3. **Evolutionary Loops** — Each evaluation cycle feeds back into better specs
+
+```
+Interview → Seed → Execute → Evaluate
+    ↑                           ↓
+    └─── Evolutionary Loop ─────┘
+```
+
+## ooo Commands
+
+Each command loads its agent/MCP on-demand. Details in each skill file.
+
+| Command | Loads |
+|---------|-------|
+| `ooo` | — |
+| `ooo interview` | `ouroboros:socratic-interviewer` |
+| `ooo seed` | `ouroboros:seed-architect` |
+| `ooo run` | MCP required |
+| `ooo evolve` | MCP: `evolve_step` |
+| `ooo evaluate` | `ouroboros:evaluator` |
+| `ooo unstuck` | `ouroboros:{persona}` |
+| `ooo status` | MCP: `session_status` |
+| `ooo setup` | — |
+| `ooo help` | — |
+
+## Agents
+
+Loaded on-demand — not preloaded.
+
+**Core**: socratic-interviewer, ontologist, seed-architect, evaluator,
+wonder, reflect, advocate, contrarian, judge
+**Support**: hacker, simplifier, researcher, architect
+<!-- ooo:END -->