Supporting implicit Caching in Gemini (RooCodeInc#3394)

* Refactor GeminiHandler to remove caching logic and update pricing structure

* Removed the enhanced caching system and related logic from GeminiHandler.
* Updated the pricing structure for cache reads in both geminiModels and vertexModels.
* Simplified the message creation process by eliminating unnecessary cache checks and operations.

* Fixing Gemini and vertex cache pricing

* Fixing Gemini and vertex cache pricing

* Update src/api/providers/gemini.ts

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>

---------

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>

Author: arafatkatze

.changeset/twenty-cobras-cry.md

@@ -0,0 +1,5 @@
+---
+"claude-dev": patch
+---
+
+Add support for Gemini Implicit Caching

package-lock.json

@@ -416,7 +416,6 @@
 		"jschardet": "^3.1.4",
 		"mammoth": "^1.8.0",
 		"monaco-vscode-textmate-theme-converter": "^0.1.7",
-		"node-cache": "^5.1.2",
 		"ollama": "^0.5.13",
 		"open-graph-scraper": "^6.9.0",
 		"openai": "^4.83.0",