fix(tool-edit-file): wrap getService in try/catch to prevent activation crash

The per-edit diagnostics change (8f6114b) called host.getService(lspServiceHandle)
during activate(). But getService THROWS when a service has no provider — so if
the LSP extension activates AFTER tool-edit-file (or isn't loaded at all), the
activate() function crashes and the edit_file tool is NEVER REGISTERED. This is
why the edit_file tool was missing from the agent toolset.

Fix: wrap getService in try/catch — if the LSP service isn't available yet,
lspService becomes undefined and edits proceed without diagnostics (the graceful
degradation the comment always promised but the code didn't deliver).

0 files changed, 0 insertions, 0 deletions