Implement persistent conversational AI chat

locales/ui/en.ftl

@@ -43,6 +43,42 @@ activity-sourceControl = Source Control
 common-save = Save
 common-open = Open
 common-cancel = Cancel
+common-delete = Delete
+chat-sidebar-empty = No conversations yet
+chat-new = New Chat
+chat-newWithModel = Chat with { $model }
+chat-unavailable-title = Conversational AI is unavailable
+chat-unavailable-guidance = Configure the active AI endpoint and model in Settings. Airplane mode uses only the local endpoint.
+chat-unavailable-openSettings = Open AI Settings
+chat-model-none = No model selected
+chat-model-label = Model
+chat-model-option = { $provider } — { $name } · { $context }k context · { $output }k output · { $capability }
+chat-model-tools = tools
+chat-model-textOnly = text only
+chat-rename-placeholder = Conversation title
+chat-rename-action = Rename
+chat-streaming = Assistant · responding…
+chat-tool-running = Running { $name }…
+chat-tool-used = Used { $name }
+chat-stop = Stop
+chat-send = Send
+chat-input-placeholder = Ask about your blog…
+chat-input-hint = Enter sends · Shift+Enter adds a line
+chat-welcome-title = How can I help with your blog?
+chat-welcome-subtitle = I can inspect project content and use blog tools when the selected model supports them.
+chat-welcome-tip1 = Summarize the current blog
+chat-welcome-tip2 = Find posts about a topic
+chat-welcome-tip3 = Review tags and categories
+chat-welcome-tip4 = Inspect media, templates, or scripts
+chat-welcome-tip5 = Update post or media metadata
+chat-role-user = You
+chat-role-assistant = Assistant
+chat-role-system = System
+chat-role-tool = Tool
+chat-deleted = Conversation deleted
+chat-link-refused = This link type is not allowed
+chat-navigation-invalid = The requested blog item could not be opened
+statusBar-chatTokens = AI ↑{ $input } ↓{ $output } cache { $cacheRead }/{ $cacheWrite }
 common-settings = Settings
 common-tasks = Tasks
 common-running = running
@@ -120,7 +156,6 @@ sidebar-noPagesYet = No pages yet
 sidebar-noMediaYet = No media yet
 sidebar-noScriptsYet = No scripts yet
 sidebar-noTemplatesYet = No templates yet
-sidebar-chatPlaceholder = AI assistant will appear here
 sidebar-importPlaceholder = Import content from external sources
 sidebar-loading = Loading...
 sidebar-settingsHeader = Settings