Split inactive profile state

Replace the binary profile ACTIVE/INACTIVE model with PENDING, ACTIVE,
and DEACTIVATED so invited-but-not-yet-activated members remain
assignable to assets, data, and risks instead of being treated like
deactivated users.

Add activated_at/deactivated_at timestamps and Mark* lifecycle helpers,
and update every transition (create, invite/re-invite, activation,
archive, SCIM, SAML, sessions, compliance-portal grant) to the new
states. Expose a multi-state states[] filter across coredata, GraphQL,
MCP, and the console owner pickers, which now request ACTIVE and
PENDING members.

A migration renames the membership_state enum, classifies existing
inactive profiles as PENDING from recent invitation activity, and
backfills the new timestamp columns.

Signed-off-by: Émile Ré <emile@probo.com>

pkg/server/api/mcp/v1/specification.yaml

@@ -184,8 +184,9 @@ components:
     ProfileState:
       type: string
       enum:
+        - PENDING
         - ACTIVE
-        - INACTIVE
+        - DEACTIVATED
       go.probo.inc/mcpgen/type: go.probo.inc/probo/pkg/coredata.ProfileState
 
     ProfileKind:
@@ -526,7 +527,7 @@ components:
           description: Profile source (MANUAL, SCIM, or SAML)
         state:
           $ref: "#/components/schemas/ProfileState"
-          description: Profile state (ACTIVE or INACTIVE)
+          description: Profile state (PENDING, ACTIVE, or DEACTIVATED)
         position:
           type:
             - string
@@ -578,7 +579,12 @@ components:
               description: Filter by contract status. True returns only users with ended contracts, false returns only users with active or no contract.
             state:
               $ref: "#/components/schemas/ProfileState"
-              description: Filter by profile state (ACTIVE or INACTIVE)
+              description: Filter by profile state (PENDING, ACTIVE, or DEACTIVATED)
+            states:
+              type: array
+              items:
+                $ref: "#/components/schemas/ProfileState"
+              description: Filter by profile states (PENDING, ACTIVE, or DEACTIVATED)
             query:
               type: string
               description: Search by full name, email address, or position