feat: teams within a project

Projects keep teams of members in their settings (settings.teams; people
outside the project are dropped, teams are archived, not removed; absent
when saving means unchanged). Tickets go to a team (`team`, also filtered
in the list and in MCP search_issues), and a comment mentioning
@[Frontend](team-FRONT) tells each of its members. Settings has the teams
with their members, the ticket a «Equipo» select, the list a team filter,
and «@» offers the teams after the people.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/api/openapi.json

@@ -2654,6 +2654,18 @@
               }
             }
           },
+          {
+            "name": "team",
+            "required": false,
+            "in": "query",
+            "description": "Team ids",
+            "schema": {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            }
+          },
           {
             "name": "priority",
             "required": false,
@@ -11152,6 +11164,34 @@
           "archived"
         ]
       },
+      "TeamDto": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string",
+            "example": "FRONTEND"
+          },
+          "name": {
+            "type": "string",
+            "example": "Frontend"
+          },
+          "memberIds": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
+          "archived": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "id",
+          "name",
+          "memberIds",
+          "archived"
+        ]
+      },
       "ProjectSettingsDto": {
         "type": "object",
         "properties": {
@@ -11189,6 +11229,12 @@
           "checklistBeforeDone": {
             "type": "boolean",
             "description": "Definition of done: tickets reach DONE only with their checklist ticked"
+          },
+          "teams": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/TeamDto"
+            }
           }
         },
         "required": [
@@ -11197,7 +11243,8 @@
           "issueTypes",
           "areas",
           "customFields",
-          "checklistBeforeDone"
+          "checklistBeforeDone",
+          "teams"
         ]
       },
       "ProjectDto": {
@@ -11560,6 +11607,35 @@
           "type"
         ]
       },
+      "TeamBodyDto": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string",
+            "example": "FRONTEND"
+          },
+          "name": {
+            "type": "string",
+            "example": "Frontend",
+            "maxLength": 40
+          },
+          "memberIds": {
+            "description": "Pireon user ids of project members (others are dropped)",
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
+          "archived": {
+            "type": "boolean",
+            "default": false
+          }
+        },
+        "required": [
+          "id",
+          "name"
+        ]
+      },
       "ProjectSettingsBodyDto": {
         "type": "object",
         "properties": {
@@ -11595,6 +11671,13 @@
               "$ref": "#/components/schemas/CustomFieldDefinitionBodyDto"
             }
           },
+          "teams": {
+            "description": "Absent: unchanged. Teams cannot be removed: archive them.",
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/TeamBodyDto"
+            }
+          },
           "checklistBeforeDone": {
             "type": "boolean",
             "description": "Definition of done: tickets reach a DONE status only with their checklist ticked (owners and admins may override). Absent: unchanged"
@@ -11899,6 +11982,11 @@
             "nullable": true,
             "example": "FRONTEND"
           },
+          "team": {
+            "type": "string",
+            "nullable": true,
+            "description": "A team id"
+          },
           "title": {
             "type": "string"
           },
@@ -12088,6 +12176,7 @@
           "key",
           "type",
           "area",
+          "team",
           "title",
           "description",
           "status",
@@ -13199,6 +13288,12 @@
             "example": "FRONTEND",
             "description": "An area id of the project's settings"
           },
+          "team": {
+            "type": "string",
+            "nullable": true,
+            "example": "FRONTEND",
+            "description": "A team id of the project's settings"
+          },
           "priority": {
             "allOf": [
               {
@@ -13337,6 +13432,12 @@
             "example": "FRONTEND",
             "description": "An area id of the project's settings"
           },
+          "team": {
+            "type": "string",
+            "nullable": true,
+            "example": "FRONTEND",
+            "description": "A team id of the project's settings"
+          },
           "priority": {
             "allOf": [
               {