agent: foundation — import legacy codebase from Obsidian vault

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

crates/transcription/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "kon-transcription"
+version = "0.1.0"
+edition = "2021"
+description = "Speech-to-text engine wrappers, model management, and inference concurrency for Kon"
+
+[dependencies]
+kon-core = { path = "../core" }
+
+# Unified STT engine (Parakeet via ONNX, Whisper via whisper.cpp)
+transcribe-rs = { version = "0.3", features = ["onnx", "whisper-cpp"] }
+
+# Async runtime for spawn_blocking
+tokio = { version = "1", features = ["rt", "sync"] }
+
+# Model downloads
+reqwest = { version = "0.12", features = ["stream"] }
+futures-util = "0.3"