Merge permission endpoints

[gsabran]

sendMessage/toolUse/permission -> sendMessage/toolUse/permission/acp

This simplifies the code, and resolves an issue where calls from Codex would not be routed correctly

[Copilot]

Pull Request Overview

This PR consolidates permission-related endpoints by merging sendMessage/toolUse/permission into sendMessage/toolUse/permission/acp. The change simplifies routing logic and fixes an issue where calls from Codex were not being routed correctly.

Key Changes:

• Removed the old /sendMessage/toolUse/permission endpoint and migrated functionality to /sendMessage/toolUse/permission/acp
• Extracted pendingToolApprovalRequests into a shared module to enable reuse across implementations
• Updated all client code and tests to use the new unified endpoint

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
local-server/src/server/server.ts	Renamed import from plural registerACPClientEndpoints to singular registerACPClientEndpoint
local-server/src/server/endpoints/sendMessage/sendMessage.ts	Removed registerClaudeCodeEndpoint import and registration call
local-server/src/server/endpoints/sendMessage/pendingToolApprovalRequests.ts	New shared module exporting pendingToolApprovalRequests map
local-server/src/server/endpoints/sendMessage/claudeCode/sendMessageToClaudeCode.ts	Removed local pendingToolApprovalRequests and endpoint registration, now imports from shared module
local-server/src/server/endpoints/sendMessage/claudeCode/tests/sendMessageToClaudeCode.test.ts	Updated tests to import registerEndpoint from ACPClient and reference new endpoint path
local-server/src/server/endpoints/sendMessage/acp/clients/ACPClient.ts	Replaced local pendingToolApprovalRequests with import from shared module
local-server/build.size	Reflects reduced bundle size from code consolidation
local-server/build.sha256	Updated build hash
app/modules/services/LLMService/Tests/RequestStreamingHelperTests.swift	Updated test to expect new endpoint path
app/modules/services/LLMService/Sources/RequestStreamingHelper.swift	Removed conditional routing logic, now always uses /acp endpoint

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