refactor(memory): complete TinyCortex engine migration

Cargo.toml

@@ -88,7 +88,7 @@ tinyagents = { version = "1.7", features = ["sqlite", "repl"] }
 # security gating, and the global singleton stay host-side. rusqlite/git2 are
 # aligned to the host pins (=0.40 / 0.21) so one bundled SQLite + one libgit2
 # link. Keep the version pin in lockstep with the submodule tag.
-tinycortex = "0.1"
+tinycortex = { version = "0.1", features = ["git-diff", "sync"] }
 tinychannels = { version = "0.1", features = ["relay-websocket"] }
 # TokenJuice code compressor — AST-aware signature extraction. Optional (C build)
 # behind the default `tokenjuice-treesitter` feature; disabling it falls back to
@@ -377,6 +377,12 @@ tinyjuice = { path = "vendor/tinyjuice" }
 tinychannels = { path = "vendor/tinychannels" }
 tinyplace = { path = "vendor/tinyplace/sdk/rust" }
 
+# TinyCortex temporarily pins the embedding API port while tinyagents #58 is
+# pending. Resolve that git source to the same vendored crate so host adapters
+# and TinyCortex share one `EmbeddingModel` trait identity.
+[patch."https://github.com/senamakel/tinyagents"]
+tinyagents = { path = "vendor/tinyagents" }
+
 # Emit just enough DWARF in release builds for Sentry to symbolicate Rust
 # panics + render surrounding source lines. `line-tables-only` keeps the
 # binary small (only file+line tables, no full type info) while still

app/src-tauri/Cargo.toml

@@ -216,7 +216,7 @@ tinyagents = { path = "../../vendor/tinyagents" }
 # TinyAgents so integration work can test crate changes against OpenHuman before
 # publishing.
 tinyflows = { path = "../../vendor/tinyflows" }
-tinycortex = { path = "../../vendor/tinycortex" }
+tinycortex = { path = "../../vendor/tinycortex", features = ["git-diff"] }
 tinyjuice = { path = "../../vendor/tinyjuice" }
 tinychannels = { path = "../../vendor/tinychannels" }
 tinyplace = { path = "../../vendor/tinyplace/sdk/rust" }
@@ -248,6 +248,11 @@ tauri-plugin-global-shortcut = { git = "https://github.com/tauri-apps/plugins-wo
 tauri-plugin-single-instance = { git = "https://github.com/tauri-apps/plugins-workspace", rev = "c6561ab6b4f9e7f650d4fc8c53fd8acc9b65b9b2" }
 tauri-plugin-notification = { path = "vendor/tauri-plugin-notification" }
 
+# Match the root Cargo world: TinyCortex's temporary git pin must resolve to
+# the vendored TinyAgents crate to preserve one embedding trait identity.
+[patch."https://github.com/senamakel/tinyagents"]
+tinyagents = { path = "../../vendor/tinyagents" }
+
 [dev-dependencies]
 # `test-util` enables `#[tokio::test(start_paused = true)]` for the
 # idle-watchdog unit tests in `cdp/session.rs` (#1213).