Restore approved state (tree of 4effcc7 "Added LICENSE")

Roll the working tree back to the last approved shape, before the post-LICENSE span that false-greened the AFI parity matrix with symbol-presence probes and smuggled an unauthorized SQLAlchemy dependency into FastAPI's Shapes binding.

Forward commit, not a history rewrite — the six commits since 4effcc7 stay in the log as the record of what happened.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

backends/mizan-tauri/Cargo.toml

@@ -10,8 +10,3 @@ mizan-core = { path = "../../cores/mizan-rust" }
 tauri = { version = "2", features = [] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-
-[dev-dependencies]
-tauri = { version = "2", features = ["test"] }
-tokio = { version = "1", features = ["rt", "macros"] }
-base64 = "0.22"