agent: foundation — import legacy codebase from Obsidian vault

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

crates/storage/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "kon-storage"
+version = "0.1.0"
+edition = "2021"
+description = "SQLite persistence, BM25 search, and file storage for Kon"
+
+[dependencies]
+kon-core = { path = "../core" }
+
+# SQLite with compile-time checked queries
+sqlx = { version = "0.8", features = ["sqlite", "runtime-tokio"] }
+
+# Async runtime
+tokio = { version = "1", features = ["rt", "sync", "macros"] }
+
+# Logging
+log = "0.4"