feat(condense v2.1): add smart code folding (RooCodeInc#10942)

* feat(condense): add smart code folding with tree-sitter signatures

At context condensation time, use tree-sitter to generate folded code
signatures (function definitions, class declarations) for files read
during the conversation. Each file is included as its own <system-reminder>
block in the condensed summary, preserving structural awareness without
consuming excessive tokens.

- Add getFilesReadByRoo() method to FileContextTracker
- Create generateFoldedFileContext() using tree-sitter parsing
- Update summarizeConversation() to accept array of file sections
- Each file gets its own content block in the summary message
- Add comprehensive test coverage (12 tests)

* fix: skip tree-sitter error strings in folded file context

- Add isTreeSitterErrorString helper to detect error messages
- Skip files that return error strings instead of embedding them
- Add test for error string handling

* refactor: move generateFoldedFileContext() inside summarizeConversation()

- Update summarizeConversation() to accept filesReadByRoo, cwd, rooIgnoreController instead of pre-generated sections
- Move folded file context generation inside summarizeConversation() (lines 319-339)
- Update ContextManagementOptions type and manageContext() to pass new parameters
- Remove generateFoldedFileContext from Task.ts imports - folding now handled internally
- Update all tests to use new parameter signature
- Reduces Task.ts complexity by moving folding logic to summarization module

* fix: prioritize most recently read files in folded context

Files are now sorted by roo_read_date descending before folded context
generation, so if the character budget runs out, the most relevant
(recently read) files are included and older files are skipped.

* refactor: improve code quality in condense module

- Convert summarizeConversation to use options object instead of 11 positional params
- Extract duplicated getFilesReadByRoo error handling into helper method
- Remove unnecessary re-export of generateFoldedFileContext
- Update all test files to use new options object pattern

* fix: address roomote feedback - batch error logging and early budget exit

---------

Co-authored-by: Roo Code <roomote@roocode.com>
Co-authored-by: daniel-lxs <ricciodaniel98@gmail.com>

Author: 3 people

src/core/condense/__tests__/condense.spec.ts

@@ -136,7 +136,13 @@ Line 2
 				{ role: "user", content: "Ninth message" },
 			]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			// Verify we have a summary message with role "user" (fresh start model)
 			const summaryMessage = result.messages.find((msg) => msg.isSummary)
@@ -164,7 +170,13 @@ Line 2
 				{ role: "user", content: "Fifth message" },
 			]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			// All original messages should be tagged with condenseParent
 			const taggedMessages = result.messages.filter((msg) => !msg.isSummary)
@@ -193,7 +205,13 @@ Line 2
 				{ role: "user", content: "Ninth message" },
 			]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			const summaryMessage = result.messages.find((msg) => msg.isSummary)
 			expect(summaryMessage).toBeTruthy()
@@ -227,7 +245,13 @@ Line 2
 				{ role: "user", content: "Perfect!" },
 			]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			// Effective history should contain only the summary (fresh start)
 			const effectiveHistory = getEffectiveApiHistory(result.messages)
@@ -239,7 +263,13 @@ Line 2
 		it("should return error when not enough messages to summarize", async () => {
 			const messages: ApiMessage[] = [{ role: "user", content: "Only one message" }]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			// Should return an error since we have only 1 message
 			expect(result.error).toBeDefined()
@@ -253,7 +283,13 @@ Line 2
 				{ role: "user", content: "Previous summary", isSummary: true },
 			]
 
-			const result = await summarizeConversation(messages, mockApiHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: mockApiHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			// Should return an error due to recent summary with no substantial messages after
 			expect(result.error).toBeDefined()
@@ -286,7 +322,13 @@ Line 2
 				{ role: "user", content: "Seventh" },
 			]
 
-			const result = await summarizeConversation(messages, emptyHandler, "System prompt", taskId, false)
+			const result = await summarizeConversation({
+				messages,
+				apiHandler: emptyHandler,
+				systemPrompt: "System prompt",
+				taskId,
+				isAutomaticTrigger: false,
+			})
 
 			expect(result.error).toBeDefined()
 			expect(result.messages).toEqual(messages)