fix: add encoding='utf-8' to read_text/write_text in plugins/ (35 sites, 13 files)

[AlexFucuson9]

Summary

Add explicit encoding="utf-8" to all Path.read_text() and .write_text() calls in plugins/ that were missing it.

Problem

Path.read_text() and .write_text() without encoding= default to the system locale:

• Linux: UTF-8 (usually fine)
• Windows: cp1252 (silently corrupts non-ASCII: emoji, CJK, accented chars)

The project's ruff rule PLW1514 only flags open() calls — Path.read_text() and .write_text() are not caught by linting.

Changes (13 files, 35 call sites)

Platform adapters:

• plugins/platforms/discord/adapter.py — update prompt answer write
• plugins/platforms/telegram/adapter.py — update prompt answer write
• plugins/platforms/feishu/adapter.py — update prompt answer write
• plugins/platforms/whatsapp/adapter.py — bridge PID + dep stamp (4 sites)
• plugins/platforms/google_chat/oauth.py — credential JSON read (2 sites)
• plugins/platforms/google_chat/adapter.py — counts JSON + bot user ID (4 sites)

Memory plugins:

• plugins/memory/mem0/_setup.py — env file + config JSON (6 sites)
• plugins/memory/mem0/__init__.py — config read
• plugins/memory/hindsight/__init__.py — config + env file (4 sites)
• plugins/memory/honcho/__init__.py — config read

Utility plugins:

• plugins/disk-cleanup/disk_cleanup.py — tracked state JSON (3 sites)
• plugins/google_meet/realtime/openai_client.py — queue file (3 sites)
• plugins/hermes-achievements/dashboard/plugin_api.py — state JSON (6 sites)

Risk

None — UTF-8 is correct for all JSON/text config files. No-op on Linux, correctness fix on Windows.

[teknium1]

Thanks for addressing the plugin-side Windows encoding gap. The premise is confirmed on current main: e.g. plugins/disk-cleanup/disk_cleanup.py:113-132 and plugins/platforms/google_chat/adapter.py:561-616 still use locale-default Path text I/O, while pyproject.toml:382-395 documents this exact Windows issue and exempts plugins from PLW1514 enforcement.

Problems

• The stated all-plugin sweep is incomplete. Two direct plugin-discovery reads remain locale-default: plugins/memory/__init__.py:84 and plugins/cron_providers/__init__.py:89. Both already use errors="replace", so they can retain that behavior while adding encoding="utf-8".

Suggested changes

• Include those two reads in this sweep, or narrow the summary claim to the 35 selected state/config paths.

Automated hermes-sweeper review.

[teknium1]

Closing as resolved by PR #71078 (merged, commit d372fda): the class-wide close-out salvaged your #50655/#54241/#56385/#66856/#65440 series as the backbone (authorship preserved in git log) and swept the remaining sites, so every read_text/write_text call this PR touches is now guarded on current main — verified per-site. A CI linter rule in check-windows-footguns.py plus the AST guard test now prevent regressions. Your overlapping/split variants of the same series are being closed together; the credit for the class rests on your commits.