v1.5.4: Remove unused feature flags and oz-platform skill

Remove cloud/sharing feature flags (viewing_shared_sessions, shared_with_me,
session_sharing_acls, shared_block_title_generation, agent_shared_sessions,
cloud_environments, cloud_conversations, etc.) and classic_completions flags.
Remove oz-platform skill. Update blocklist views and drive index.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/Cargo.toml

@@ -461,14 +461,11 @@ cross_repo_context = []
 codebase_index_persistence = ["full_source_code_embedding"]
 default = [
     "agent_mode",
-    "viewing_shared_sessions",
     "render_continuous_block_selections_with_single_border",
     "settings_import",
-    "shared_with_me",
     "block_toolbelt_save_as_workflow",
     "remove_alt_screen_padding",
     "less_horizontal_terminal_padding",
-    "session_sharing_acls",
     "external_agent_mode_context",
     "shell_selector",
     "minimalist_ui",
@@ -507,7 +504,6 @@ default = [
     "agent_management_view",
     "agent_management_details_view",
     "interactive_conversation_management_view",
-    "shared_block_title_generation",
     "tab_close_button_on_left",
     "ai_resume_button",
     "code_find_replace",
@@ -545,39 +541,22 @@ default = [
     "summarize_conversation_command",
     "inline_code_review",
     "web_search_ui",
-    "agent_shared_sessions",
     "integration_command",
     "artifact_command",
-    "cloud_environments",
-    "create_environment_slash_command",
     "code_review_find",
-    "shared_session_long_running_commands",
     "mcp_grouped_server_context",
     "fork_from_command",
     "context_window_usage_v2",
-    "ambient_agents_command_line",
-    "ambient_agents_image_upload",
-    "scheduled_ambient_agents",
-    "galaxy_managed_secrets",
     "v4a_file_diffs",
-    "classic_completions",
-    "force_classic_completions",
     "team_api_keys",
     "agent_tips",
     "pluggable_notifications",
     "agent_onboarding",
     "global_search",
-    "cloud_conversations",
     "list_skills",
     "ask_user_question",
     "bundled_skills",
-    "ambient_agents_rtc",
-    "cloud_mode",
-    "cloud_mode_from_local_session",
-    "cloud_mode_image_context",
     "agent_mode_computer_use",
-    "oz_platform_skills",
-    "sync_ambient_plans",
     "conversation_artifacts",
     "agent_view",
     "agent_view_block_context",
@@ -585,13 +564,10 @@ default = [
     "inline_slash_commands",
     "inline_history_menu",
     "inline_model_selector",
-    "oz_launch_modal",
-    "open_warp_launch_modal",
     "new_tab_styling",
     "richtext_multiselect",
     "inline_profile_selector",
     "web_fetch_ui",
-    "oz_changelog_updates",
     "skill_arguments",
     "incremental_auto_reload",
     "active_conversation_requires_interaction",
@@ -612,21 +588,31 @@ default = [
     "rewind_slash_command",
     "hoa_code_review",
     "warpify_footer",
+    "hoa_notifications",
+    "hoa_onboarding_flow",
     "agent_toolbar_editor",
     "configurable_toolbar",
     "transfer_control_tool",
-    "hoa_notifications",
     "open_code_notifications",
     "cli_agent_rich_input",
     "vertical_tabs",
     "tab_configs",
-    "hoa_onboarding_flow",
-    "hoa_remote_control",
     "codex_notifications",
     "trim_trailing_blank_lines",
     "open_warp_new_settings_modes",
     "skip_firebase_anonymous_user",
     "settings_file",
+    "queue_slash_command",
+    "pending_user_query_indicator",
+    "orchestration",
+    "orchestration_v2",
+    "lsp_as_a_tool",
+    "cross_repo_context",
+    "completions_v2",
+    "voice_input",
+    "drag_tabs_to_windows",
+    "plugin_host",
+    "file_and_diff_set_comments",
 ]
 # Enable this feature to automatically perform heap profiling.  NOTE: This will
 # substantially slow down program execution.