Long-running gateway/TUI processes grew four in-memory structures for their
whole lifetime:
- agent/lsp/client.py: `_docs` pinned every opened file's full text (and the
server's mirror) until the idle reaper killed the client. Now an
insertion-ordered LRU capped at MAX_TRACKED_FILES=64; evicted files are
didClose'd and re-didOpen'ed on their next touch.
- agent/lsp/manager.py: `_delta_baseline` kept a pre-write snapshot for every
path ever written; capped at 256 with write-recency eviction.
- tui_gateway/methods_complete_helpers.py: `_fuzzy_cache` only checked its TTL
on read, so a root queried once (one .worktrees/<id> per worktree flow) was
pinned forever; the write path now sweeps expired roots under the lock.
- gateway/run_turn.py: `logging.getLogger(f"hermes.tool_calls.{id(log_queue)}")`
registered one permanent Logger per logged turn; a single fixed-name Logger
with one RotatingFileHandler is shared by all turns.
Salvaged from #62934 by @Vissirexa, re-targeted onto the decomposed modules.
The per-task file-tool tracker hunks were dropped: f7a422ee4a already pops
them in AIAgent.close()/cleanup_vm via clear_file_ops_cache.
(cherry picked from commit 668f43b2ea9)
539b82698e