chore(deps): upgrade Angular 19 → 20

- ng update @angular/core@20 @angular/cli@20 @angular/material@20 @angular-eslint@20 @angular/google-maps@20
- Remove ng-chartist (abandoned, incompatible with Angular 20): replace <x-chartist> with <app-bars-chart> in dropzones-bar and jumps-by-month
- Migrate all constructor injection to inject() function (ng generate @angular/core:inject, 67 files)
- TypeScript 5.5 → 5.9.3
- DOCUMENT import moved from @angular/common to @angular/core (automatic migration)
- tsconfig moduleResolution updated to "bundler"

.claude/settings.json

@@ -9,7 +9,8 @@
             "Bash(node -e \"const c = require\\('chart.js'\\); console.log\\(Object.keys\\(c\\).filter\\(k => k.includes\\('Doughnut'\\) || k.includes\\('Controller'\\)\\)\\)\")",
             "Bash(npm list *)",
             "Bash(ng update *)",
-            "Bash(npm run *)"
+            "Bash(npm run *)",
+            "Bash(nvm ls *)"
         ]
     }
 }