feat: cursor planning mode (#1289)

cursor-planning-mode.md

@@ -0,0 +1,35 @@
+Cursor planning mode
+====================
+
+Because avante.nvim has always used Aider’s method for planning applying, but its prompts are very picky with models and require ones like claude-3.5-sonnet or gpt-4o to work properly.
+
+Therefore, I have adopted Cursor’s method to implement planning applying. For details on the implementation, please refer to: [🚀 Introducing Fast Apply - Replicate Cursor's Instant Apply model](https://www.reddit.com/r/LocalLLaMA/comments/1ga25gj/introducing_fast_apply_replicate_cursors_instant/)
+
+So you need to first run the `FastApply` model mentioned above:
+
+```bash
+ollama pull hf.co/Kortix/FastApply-7B-v1.0_GGUF:Q4_K_M
+```
+
+Then enable it in avante.nvim:
+
+```lua
+{
+    --- ... existing configurations
+    cursor_applying_provider = 'fastapply',
+    behaviour = {
+        --- ... existing behaviours
+        enable_cursor_planning_mode = true,
+    },
+    vendors = {
+        --- ... existing vendors
+        fastapply = {
+            __inherited_from = 'openai',
+            api_key_name = '',
+            endpoint = 'http://localhost:11434/v1',
+            model = 'hf.co/Kortix/FastApply-7B-v1.0_GGUF:Q4_K_M',
+        },
+    },
+    --- ... existing configurations
+}
+```