chore: bump @opencode-ai/sdk to ^1.17.7 and update changelogs

Upgraded @opencode-ai/sdk dependency from ^1.17.0 to ^1.17.7 across all packages
Added unreleased changelog entries for VSCode startup parity, mobile tool card fix, and files workspace directory fix
Refined VSCode changelog to remove inaccurate project-level actions note

package.json

@@ -90,7 +90,7 @@
     "@ibm/plex": "^6.4.1",
     "@lezer/highlight": "^1.2.3",
     "@octokit/rest": "^22.0.1",
-    "@opencode-ai/sdk": "^1.17.0",
+    "@opencode-ai/sdk": "^1.17.7",
     "@radix-ui/react-collapsible": "^1.1.12",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",