Quiet plugin ring-buffer console echo during test runs

[dsarno]

Problem

A clean, all-green test_run printed thousands of alarming lines — making a passing run look broken. The bulk:

• ~500 MCP | filler N lines from the log-ring bound test (test_dock),
• per-test dispatcher [recv]/[send] chatter, and
• [error] ... malformed result lines from negative-path suites (e.g. test_dispatcher) that deliberately drive failures.

Fix

McpLogBuffer.log() echoed every line to the Godot console unconditionally (the existing enabled field was never consulted). Now:

• The console print is gated on enabled and console_echo. The ring buffer still records every line, so tests that assert on buffer contents via get_recent() / total_logged() are unaffected.
• A new static console_echo (default true, so production logging is unchanged) is flipped off by the test runner for the duration of a run and restored afterward.

Scope / non-goals

• Engine-level C++ errors (JSON parse failures, get_node() from outside the active tree, etc.) that negative-path tests intentionally trigger are not routed through our logger and still surface — that's inherent and out of scope.
• The 33 raw print("MCP | ...") calls in the update/lifecycle paths are left as-is (real diagnostics, not buffer-routed). Trimming those is a possible follow-up.

Verification

Live on Godot 4.6.3 (test_run via the live editor):

Metric	Before	After
`MCP	filler` lines during a run	~500
dispatcher [error] lines	2	0
total editor-console lines for a run	thousands	~400

• GDScript suite: 0 failures (new log_buffer suite asserts the ring still records under a muted echo; a brittle "defaults true" test was intentionally omitted since the runner mutes the flag mid-run).
• 0 parse errors on Godot 4.6.3 and 4.3.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Quiets the plugin's McpLogBuffer console echo during test runs so an all-green run isn't drowned in deliberately-induced ring-buffer fill messages and negative-path error chatter. The ring buffer continues to record every line, so content-based assertions are unaffected.

Changes:

• Add a static console_echo flag on McpLogBuffer and gate the print() in log() on both enabled and console_echo.
• Test runner saves, mutes, and restores console_echo around run_suites().
• New test_log_buffer.gd suite verifying ring recording continues when echo is muted or enabled is false.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
plugin/addons/godot_ai/utils/log_buffer.gd	Adds static var console_echo; gates console print on enabled and console_echo.
plugin/addons/godot_ai/testing/test_runner.gd	Mutes McpLogBuffer.console_echo for duration of run_suites() and restores it.
test_project/tests/test_log_buffer.gd	New suite asserting ring recording continues under muted echo / disabled instance.
test_project/tests/test_log_buffer.gd.uid	UID file for the new test script.

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