feat(cms): recover drafts and failed imports with verified UI workflows

src/messages/en.json

@@ -1,4 +1,14 @@
 {
+	"draftRecovery": {
+		"ready": "A recovery copy will be kept in this browser for 7 days.",
+		"saved": "Recovery copy saved in this browser for 7 days.",
+		"unavailable": "Browser recovery is unavailable. Keep this page open until your changes are saved.",
+		"found": "A recovery copy is available in this browser, saved on",
+		"restore": "Restore browser copy",
+		"discard": "Discard browser copy",
+		"confirmRestore": "Replace the current form with the browser recovery copy? Review the contents before saving.",
+		"confirmDiscard": "Delete this browser recovery copy? Your current form will remain unchanged."
+	},
 	"nav": {
 		"home": "Home",
 		"community": "Community",
@@ -4661,6 +4671,26 @@
 	},
 	"admin": {
 		"studio": {
+			"importDiagnostics": {
+				"attempts": "Source file diagnostics",
+				"preliminary": "Preliminary check: these addresses were checked without downloading the files. The import will validate the original files.",
+				"http": "HTTP {status}",
+				"network": "Network connection failed",
+				"timeout": "The source did not respond in time",
+				"invalidResponse": "The source returned a web page instead of a file",
+				"available": "File found; content will be verified during import",
+				"recover": "Attach original file and resume",
+				"recoveryHint": "Choose {file} for this furniture (maximum 50 MB). Its identity is checked before use. Resuming retries the failed items and preserves completed imports.",
+				"attach": "Choose the original .nitro file",
+				"working": "Validating file or resuming import...",
+				"attached": "Matching original file attached",
+				"resume": "Resume failed imports with this file",
+				"invalidFile": "Could not attach the file. Select a valid original .nitro for this furniture, up to 50 MB, and try again.",
+				"resumeError": "Could not resume. Refresh the history and use the latest retry; check the original file and try again.",
+				"mismatchedFile": "This file belongs to different furniture.",
+				"alreadyStarted": "Recovery already started. Refresh the history and use the latest retry.",
+				"notEligible": "This item is not eligible for attachment recovery."
+			},
 			"completeness": {
 				"title": "Completeness and next steps",
 				"parts": {