Add no-query recall fallback across all flavors; port WSL/UTF-8 fixes

A bare summon (recall/brief with no --query) returned empty even when the
agent had memory — the --agent flag scopes a query, it doesn't dump records.
New _recent_hits() surfaces the agent's most relevant recent long-term
records, reranked by recency fused with the existing kind/confidence weights:

- brief falls back on no matches (summon.py auto-fills triggers as the query),
  returning the set under a new "recent" key
- recall falls back only when no query terms were supplied at all; an explicit
  query that misses still returns an honest empty

Hits carry why="recent (no query match)" and are not graph-wired (no query, no
Hebbian event). New RECENT_DEFAULT=8. Docs and summon legend updated.

Also ported two pre-existing universal fixes the skill/claude flavors lacked:
shutil.copy2 -> copyfile (PermissionError on Google Drive / WSL mounts) and a
UTF-8 stdout/stderr reconfigure (cp1252 emoji crash on Windows).

Versions: plugin 3.3.0; skill + claude 2.5.0. 62/62 tests pass in each.
Regenerated professor-synapse-claude.zip.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

v2.5.0 — No-query recall fallback + WSL/UTF-8 fixes

Merge pull request #52 from ProfSynapse/restructure/three-flavors

Two skill flavors (Claude + portable) with in-place self-update — v2.4.0

Merge pull request #50 from ProfSynapse/release/v2.3.0

release: v2.3.0

Merge pull request #48 from ProfSynapse/release/v2.2.0

release: v2.2.0

Merge pull request #44 from ProfSynapse/feat/programmatic-summoning

feat: programmatic agent summoning (summon.py) + v2.1.0

Merge pull request #36 from ProfSynapse/claude/release-update-script

release: skill v2.0.0 — memory baseline + script-driven updates

Merge pull request #33 from ProfSynapse/claude/release-v1.1.0

release: skill v1.1.0 (memory system)

Merge pull request #29 from ProfSynapse/professor-synapse-packaging-a…

…nd-patterns

feat: Packaging enforcement + two-tier learned patterns

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