feat(import-progress): track and expose Immich import progress

This change introduces a cross-language import progress API for Immich
imports and exposes a new query command to report live progress. A
new ImportProgress model captures active state, totals, and bytes
downloaded, allowing consuming code to display import status to users.

- Adds ImportProgress data type and progress tracking during import
- Exposes get_immich_import_progress command in Android and Rust
- Updates permissions and schemas to include allow-get-immich-import-progress

plugins/permissions/autogenerated/commands/get_immich_import_progress.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-immich-import-progress"
+description = "Enables the get_immich_import_progress command without any pre-configured scope."
+commands.allow = ["get_immich_import_progress"]
+
+[[permission]]
+identifier = "deny-get-immich-import-progress"
+description = "Denies the get_immich_import_progress command without any pre-configured scope."
+commands.deny = ["get_immich_import_progress"]