Fix task status: 'complete' -> 'completed' for taskgraph compatibility

tasks/config/cli-parsing.md

@@ -1,7 +1,7 @@
 ---
 id: config/cli-parsing
 name: Implement CLI argument parsing with clap and config file loading
-status: complete
+status: completed
 depends_on: [config/static-config, config/validation]
 scope: narrow
 risk: low

tasks/config/dynamic-config.md

@@ -1,7 +1,7 @@
 ---
 id: config/dynamic-config
 name: Implement DynamicConfig with ArcSwap hot-reload and ConfigReloadHandle
-status: complete
+status: completed
 depends_on: [config/static-config]
 scope: moderate
 risk: medium

tasks/config/static-config.md

@@ -1,7 +1,7 @@
 ---
 id: config/static-config
 name: Implement StaticConfig, ListenerConfig, TlsConfig, and LoggingConfig structs with TOML deserialization
-status: complete
+status: completed
 depends_on: [setup/project-init]
 scope: moderate
 risk: low

tasks/config/validation.md

@@ -1,7 +1,7 @@
 ---
 id: config/validation
 name: Implement config validation with all 18 validation rules and error reporting
-status: complete
+status: completed
 depends_on: [config/static-config]
 scope: moderate
 risk: medium