Include initial context from OpenCtx providers. (#5433)

context:
https://linear.app/sourcegraph/issue/PROD-264/one-pager-for-how-to-get-this-set-up-using-openctx

We have [added](sourcegraph/openctx#199)
`meta.mentions.autoInclude` property for OpenCtx providers. The
providers which set that to `true` will be used to include the mentions
they return as initial context items. We are also passing the active
file uri and codebase names to the `mentions` function.


## Test plan
Set the following as the vs code setting and see the hello world mention
item chip appearing as the default context item.
```json
"openctx.providers": {
        "https://openctx.org/npm/@openctx/provider-hello-world": true
}
```

## Changelog

Include initial context from OpenCtx providers.

package.json

@@ -62,7 +62,7 @@
     "vitest": "^2.0.5"
   },
   "dependencies": {
-    "@openctx/client": "^0.0.25",
+    "@openctx/client": "^0.0.26",
     "@sourcegraph/telemetry": "^0.18.0",
     "ignore": "^5.3.1",
     "observable-fns": "^0.6.1",

vscode/package.json

@@ -1354,8 +1354,8 @@
   },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.20.8",
-    "@openctx/provider-linear-issues": "^0.0.6",
-    "@openctx/vscode-lib": "^0.0.21",
+    "@openctx/provider-linear-issues": "^0.0.7",
+    "@openctx/vscode-lib": "^0.0.22",
     "@opentelemetry/api": "^1.7.0",
     "@opentelemetry/core": "^1.18.1",
     "@opentelemetry/exporter-trace-otlp-http": "^0.45.1",

vscode/src/chat/clientStateBroadcaster.ts

@@ -1,21 +1,27 @@
 import {
     type ContextItem,
+    type ContextItemOpenCtx,
     ContextItemSource,
     type ContextItemTree,
     REMOTE_REPOSITORY_PROVIDER_URI,
     contextFiltersProvider,
     displayLineRange,
     displayPathBasename,
     expandToLineRange,
+    openCtx,
     subscriptionDisposable,
 } from '@sourcegraph/cody-shared'
 import * as vscode from 'vscode'
+import { URI } from 'vscode-uri'
 import { getSelectionOrFileContext } from '../commands/context/selection'
 import { createRepositoryMention } from '../context/openctx/common/get-repository-mentions'
 import { workspaceReposMonitor } from '../repository/repo-metadata-from-git-api'
 import { authProvider } from '../services/AuthProvider'
 import type { ChatModel } from './chat-view/ChatModel'
-import { contextItemMentionFromOpenCtxItem } from './context/chatContext'
+import {
+    contextItemMentionFromOpenCtxItem,
+    getActiveEditorContextForOpenCtxMentions,
+} from './context/chatContext'
 import type { ExtensionMessage } from './protocol'
 
 type PostMessage = (message: Extract<ExtensionMessage, { type: 'clientState' }>) => void
@@ -153,7 +159,30 @@ export async function getCorpusContextItemsForEditorState(useRemote: boolean): P
         }
     }
 
-    return items
+    const providers = (await openCtx.controller?.meta({}))?.filter(meta => meta.mentions?.autoInclude)
+    if (!providers) {
+        return items
+    }
+
+    const activeEditorContext = await getActiveEditorContextForOpenCtxMentions()
+
+    const openctxMentions = (
+        await Promise.all(
+            providers.map(async (provider): Promise<ContextItemOpenCtx[]> => {
+                const mentions =
+                    (await openCtx?.controller?.mentions(activeEditorContext, provider)) || []
+
+                return mentions.map(mention => ({
+                    ...mention,
+                    provider: 'openctx',
+                    type: 'openctx',
+                    uri: URI.parse(mention.uri),
+                }))
+            })
+        )
+    ).flat()
+
+    return [...items, ...openctxMentions]
 }
 
 function idempotentPostMessage(rawPostMessage: PostMessage): PostMessage {