feat: unify execution and add workspace file imports

Remove Ask/Execute modes and general product tool approvals so requests use the selected runtime, enabled capabilities, and execution account permissions. Migrate retired application metadata while preserving user content.

Retire the Results page while retaining conversation images and stored artifacts. Add local and remote workspace file imports, timestamps and sorting, improve image discovery and saving, and refine workspace navigation and supervision responsiveness. Include the accompanying web-search changes, tests, probes, and product documentation.

Remote imports require an updated Agent. Existing artifacts are not automatically copied into project directories. Validation evidence and outstanding failures remain documented in feature progress files; no full test suite or real-model calls were rerun for this commit.

Release note: Run requests without switching work modes, import files into a selected local or remote workspace folder, sort workspace files by date, and keep using conversation images after removal of the Results page.

README.md

@@ -32,8 +32,8 @@ same device, on a private network, or at a provider selected by the user.
   stays local by default, and users choose where model services run.
 - **Unified Agent Runtimes**: Use direct models, OpenCode, Continue, and the
   preview DeepSeek Harness from one desktop interface.
-- **Explicit execution boundaries**: `Ask` remains read-only, while `Execute`
-  uses the current account's permissions. Tool activity, cancellation,
+- **Unified execution**: Requests use the selected Runtime, enabled capabilities,
+  and current account permissions without choosing a work mode. Tool activity, cancellation,
   timeouts, and token usage are recorded.
 - **Broad platform coverage**: Official Linux releases cover `x64` and `arm64`,
   including compatible distributions used in China's domestic computing
@@ -53,7 +53,7 @@ current limitations.
 | Area | Available in GoodBuddy |
 | --- | --- |
 | Agent Runtimes | Direct model connections, OpenCode, Continue, and the preview DeepSeek Harness |
-| Data and execution | Local SQLite and note-file storage, read-only `Ask`, full-account `Execute`, and recorded tool activity |
+| Data and execution | Local SQLite and note-file storage, current-account tool execution, and recorded tool activity |
 | Knowledge | File, folder, and web imports with full-text, Chinese phrase, vector, and knowledge graph retrieval |
 | Desktop releases | Official Windows, macOS, and Linux builds for `x64` and `arm64`, plus an experimental LoongArch preview |
 | Integrations | Local or hosted model endpoints, custom MCP servers, WeChat ClawBot, WeCom, and DingTalk |
@@ -142,7 +142,7 @@ See [BUILD.md](./BUILD.md) for build and packaging instructions.
   default. API keys are encrypted by secure system storage.
 - The Renderer has no access to raw Electron APIs or model credentials.
 - The DeepSeek Harness plugin marketplace is off by default. Third-party
-  install scripts, initialization code, and Execute tools run with the current
+  install scripts, initialization code, and tools run with the current
   user's permissions.
 - Remote delegation is enabled only after the user configures an endpoint and
   token.