make name the core block info

Tests/phbarTests/PHBlockTests.swift

@@ -16,6 +16,7 @@ import Testing
 
 	[[block]]
 	command = "echo world"
+	name = "world"
 	"""
 
 	let blocks = try PHBlock.load(from: toml)
@@ -25,7 +26,7 @@ import Testing
 	#expect(blocks[0].name == "greeting")
 	#expect(blocks[0].refresh == 5.0)
 	#expect(blocks[0].label == nil)
-	#expect(blocks[1].name == nil)
+	#expect(blocks[1].name == "world")
 	#expect(blocks[1].refresh == nil)
 }
 
@@ -73,11 +74,28 @@ private func makeBlocksConfigDir() throws -> URL {
 
 // MARK: - Compute
 
+@MainActor
+@Test func computeSeesBlockEnvironment() async throws {
+	// The `[env]` section (overlaid by `BarController`) must reach the script's
+	// process environment — this is the wiring the `env` config documents.
+	let block = try PHBlock.load(from: """
+	[[block]]
+	name = "env"
+	command = "echo $PHBAR_TEST_VAR"
+	""")[0]
+	block.environment = PHEnvironment(variables: ["PHBAR_TEST_VAR": "panini"])
+
+	let output = await block.compute()
+
+	#expect(output == "panini")
+}
+
 @MainActor
 @Test func computeReturnsCommandStdout() async throws {
 	let blocks = try PHBlock.load(from: """
 	[[block]]
 	command = "printf panini"
+	name = "panini"
 	""")
 
 	let output = await blocks[0].compute()
@@ -95,6 +113,7 @@ private func makeBlocksConfigDir() throws -> URL {
 	let blocks = try PHBlock.load(from: """
 	[[block]]
 	command = "pwd"
+	name = "pwd"
 	""")
 
 	let output = await blocks[0].compute()
@@ -112,6 +131,7 @@ private func makeBlocksConfigDir() throws -> URL {
 	let block = try PHBlock.load(from: """
 	[[block]]
 	command = "printf panini"
+	name = "panini"
 	""")[0]
 
 	#expect(block.label == nil)
@@ -126,6 +146,7 @@ private func makeBlocksConfigDir() throws -> URL {
 	let block = try PHBlock.load(from: """
 	[[block]]
 	command = "printf hi"
+	name = "hi"
 	""")[0]
 
 	block.startAutoRefresh()
@@ -149,6 +170,7 @@ private func makeBlocksConfigDir() throws -> URL {
 	let toml = """
 	[[block]]
 	command = "n=$(cat \(path) 2>/dev/null || echo 0); n=$((n+1)); echo $n > \(path); echo $n"
+	name = "counter"
 	refresh = 0.05
 	"""