Rewrite Python interpreter discovery

# Conflicts:
#	crates/uv-interpreter/src/environment/python_environment.rs
#	crates/uv-interpreter/src/find_python.rs
#	crates/uv-interpreter/src/interpreter.rs
#	crates/uv-virtualenv/src/bare.rs

# Conflicts:
#	crates/uv-virtualenv/src/bare.rs

# Conflicts:
#	crates/uv-interpreter/src/find_python.rs
#	crates/uv-interpreter/src/implementation.rs
#	crates/uv-interpreter/src/interpreter.rs
#	crates/uv-interpreter/src/lib.rs
#	crates/uv-interpreter/src/managed/find.rs
#	crates/uv-interpreter/src/py_launcher.rs

# Conflicts:
#	crates/uv-interpreter/src/find_python.rs

# Conflicts:
#	crates/uv/src/commands/run.rs

# Conflicts:
#	crates/uv-interpreter/src/environment.rs
#	crates/uv-interpreter/src/find_python.rs
#	crates/uv-interpreter/src/lib.rs
#	crates/uv-interpreter/src/py_launcher.rs
#	crates/uv-resolver/tests/resolver.rs
#	crates/uv/src/commands/project/run.rs
#	crates/uv/tests/pip_sync.rs

# Conflicts:
#	crates/uv-interpreter/src/find_python.rs
#	crates/uv/src/commands/pip/install.rs
#	crates/uv/src/commands/pip/sync.rs

# Conflicts:
#	crates/uv-interpreter/src/interpreter.rs
#	crates/uv-interpreter/src/lib.rs

# Conflicts:
#	crates/uv-interpreter/src/find_python.rs
#	crates/uv-interpreter/src/py_launcher.rs
#	crates/uv-resolver/tests/resolver.rs
#	crates/uv-virtualenv/src/main.rs

# Conflicts:
#	crates/uv-interpreter/Cargo.toml
#	crates/uv-interpreter/src/environment.rs
#	crates/uv/src/commands/project/mod.rs
#	crates/uv/src/commands/project/run.rs

crates/uv-interpreter/Cargo.toml

@@ -51,7 +51,9 @@ winapi = { workspace = true }
 
 [dev-dependencies]
 anyhow = { version = "1.0.80" }
+assert_fs = { version = "1.1.1" }
 indoc = { version = "2.0.4" }
-insta = { version = "1.36.1", features = ["filters"] }
 itertools = { version = "0.13.0" }
+temp-env = { version = "0.3.6" }
 tempfile = { version = "3.9.0" }
+test-log = { version = "0.2.15", features = ["trace"], default-features = false }