feat(ai-chat): allow new TaskCreate/TaskUpdate/TaskList/TaskGet tools

Pair with the phoenix-pro aggregator that renders these as a single
task-list card. Also adds AI_CHAT_TOOL_WEB_FETCH/WEB_SEARCH strings
for the previously-missing WebFetch/WebSearch indicator labels.

Author: abose

src-node/claude-code-agent.js

@@ -826,6 +826,7 @@ async function _runQuery(requestId, prompt, projectPath, model, signal, locale,
             "Read", "Edit", "Write", "Glob", "Grep", "Bash",
             "AskUserQuestion", "Task",
             "TodoRead", "TodoWrite",
+            "TaskCreate", "TaskUpdate", "TaskList", "TaskGet",
             "WebFetch", "WebSearch",
             "EnterPlanMode", "ExitPlanMode",
             "mcp__phoenix-editor__getEditorState",

src/nls/root/strings.js

@@ -2238,6 +2238,8 @@ define({
     "AI_CHAT_TOOL_CONTROL_EDITOR": "Editor",
     "AI_CHAT_TOOL_TASKS": "Tasks",
     "AI_CHAT_TOOL_TASKS_SUMMARY": "{0} of {1} tasks done",
+    "AI_CHAT_TOOL_WEB_FETCH": "Fetch web page",
+    "AI_CHAT_TOOL_WEB_SEARCH": "Web search",
     "AI_CHAT_TOOL_SEARCHED": "Searched: {0}",
     "AI_CHAT_TOOL_GREP": "Grep: {0}",
     "AI_CHAT_TOOL_READ_FILE": "Read {0}",