feat(prax): fix dashboard refresh data pipeline — 4 bugs (#47)

- Fix prax.py argparse eating --all/--branch flags before they reach
  dashboard handler (parse_args → parse_known_args + forward remaining)
- Fix case-sensitive branch matching in flow extraction (centrals use
  lowercase, refresh uses uppercase — added .upper() to comparison)
- Add missing last_updated timestamp to ai_mail section extraction
- Fix flow last_updated to read generated_at from PLANS.central.json
  instead of non-existent top-level last_updated

Tested: refresh --all now updates all 15 branches with live data.
FLOW correctly shows 12 active plans (was 0 due to case mismatch).

Co-authored-by: @prax <prax@aipass>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/aipass/prax/apps/handlers/dashboard/refresh.py

@@ -78,8 +78,8 @@ def _extract_flow_section(centrals: Dict, branch_name: str) -> Dict:
 
     active_plans = plans_data.get("active_plans", [])
 
-    # Count plans for this branch
-    branch_plans = [p for p in active_plans if p.get("branch") == branch_name]
+    # Count plans for this branch (case-insensitive — centrals use lowercase, refresh uses uppercase)
+    branch_plans = [p for p in active_plans if p.get("branch", "").upper() == branch_name]
 
     # Get recently_closed from top-level (already limited to 5 by push_central)
     recently_closed_raw = plans_data.get("recently_closed", [])
@@ -93,7 +93,7 @@ def _extract_flow_section(centrals: Dict, branch_name: str) -> Dict:
         "managed_by": "flow",
         "active_plans": len(branch_plans),
         "recently_closed": recently_closed,
-        "last_updated": plans_data.get("last_updated", datetime.now().isoformat())
+        "last_updated": plans_data.get("generated_at", plans_data.get("last_updated", datetime.now().isoformat()))
     }
 
 
@@ -109,7 +109,8 @@ def _extract_ai_mail_section(centrals: Dict, branch_name: str) -> Dict:
     return {
         "managed_by": "ai_mail",
         "unread": stats.get("unread", 0),
-        "total": stats.get("total", 0)
+        "total": stats.get("total", 0),
+        "last_updated": mail_data.get("last_updated", datetime.now().isoformat())
     }
 
 

src/aipass/prax/apps/prax.py

@@ -166,7 +166,7 @@ Examples:
     parser.add_argument('--version', '-V', action='version', version='PRAX v2.0.0')
     parser.add_argument('--verbose', '-v', action='store_true', help='Verbose output')
 
-    parsed_args = parser.parse_args()
+    parsed_args, remaining = parser.parse_known_args()
 
     # If no command provided, show introspection display
     if not parsed_args.command:
@@ -180,8 +180,12 @@ Examples:
         error("No command modules discovered")
         return 1
 
+    # Merge positional args with any flags argparse didn't consume
+    # so subcommand handlers like dashboard can receive --all, --branch, etc.
+    all_args = parsed_args.args + remaining
+
     # Route command to appropriate handler
-    if route_command(parsed_args.command, parsed_args.args, handlers):
+    if route_command(parsed_args.command, all_args, handlers):
         return 0
     else:
         error(f"Unknown command: {parsed_args.command}")