fix(tui): correct _phase_progress return type from tuple[int,float] to int

Also normalize lone lowercase add_log_entry('info', ...) to 'INFO'.

Author: kbtale

src/backend/discovery.py

@@ -839,7 +839,7 @@ def report_readiness(interfaces, routes, subnets):
     print("NetDocIT Environment Discovery Engine")
     print("=" * 40)
 
-    add_log_entry("info", "starting automated network discovery", "scanner")
+    add_log_entry("INFO", "starting automated network discovery", "Scanner")
     discovery = discover_all()
 
     print(f"Interfaces Detected: {len(discovery['interfaces'])}")

src/presentation/tui.py

@@ -150,7 +150,7 @@ def _live_summary_line(self):
             f"sort: {self.live_scan_sort_mode} | filter: {self.live_scan_filter_mode}"
         )
 
-    def _phase_progress(self) -> tuple[int, float]:
+    def _phase_progress(self) -> int:
         phase_map = {
             "starting": 5, "icmp_ping_sweep": 30, "tcp_port_scan": 60,
             "host_enrichment": 85, "completed": 100,