assistant2: Make ContextStore::insert_* methods private (#22989)

This PR makes the `insert_*` methods on the `ContextStore` private, to
reduce confusion with the public `add_*` methods.

Release Notes:

- N/A

crates/assistant2/src/context_strip.rs

@@ -1,12 +1,10 @@
 use std::rc::Rc;
 
-use anyhow::Result;
 use collections::HashSet;
 use editor::Editor;
 use file_icons::FileIcons;
 use gpui::{
-    DismissEvent, EventEmitter, FocusHandle, Model, ModelContext, Subscription, Task, View,
-    WeakModel, WeakView,
+    DismissEvent, EventEmitter, FocusHandle, Model, Subscription, View, WeakModel, WeakView,
 };
 use itertools::Itertools;
 use language::Buffer;
@@ -244,7 +242,7 @@ impl Render for ContextStrip {
                         let context_store = self.context_store.clone();
                         Rc::new(cx.listener(move |this, _event, cx| {
                             let task = context_store.update(cx, |context_store, cx| {
-                                suggested.accept(context_store, cx)
+                                context_store.accept_suggested_context(&suggested, cx)
                             });
 
                             let workspace = this.workspace.clone();
@@ -339,30 +337,6 @@ impl SuggestedContext {
         }
     }
 
-    pub fn accept(
-        &self,
-        context_store: &mut ContextStore,
-        cx: &mut ModelContext<ContextStore>,
-    ) -> Task<Result<()>> {
-        match self {
-            Self::File {
-                buffer,
-                icon_path: _,
-                name: _,
-            } => {
-                if let Some(buffer) = buffer.upgrade() {
-                    return context_store.add_file_from_buffer(buffer, cx);
-                };
-            }
-            Self::Thread { thread, name: _ } => {
-                if let Some(thread) = thread.upgrade() {
-                    context_store.insert_thread(thread, cx);
-                };
-            }
-        }
-        Task::ready(Ok(()))
-    }
-
     pub fn kind(&self) -> ContextKind {
         match self {
             Self::File { .. } => ContextKind::File,