feat(ecc): prune plugin 43→12 items, promote 7 rules to .claude/rules/ (#245)

ECC community plugin pruning: removed 530+ non-essential files
(.cursor/, .opencode/, docs/ja-JP, docs/zh-CN, docs/zh-TW,
language-specific skills/agents/rules). Retained 4 agents,
3 commands, 5 skills. Promoted 13 rule files (8 common + 5
typescript) to .claude/rules/ for CC native loading. Extracted
reusable patterns to EXTRACTED-PATTERNS.md.

skills/continuous-learning/evaluate-session.sh

@@ -1,69 +0,0 @@
-#!/bin/bash
-# Continuous Learning - Session Evaluator
-# Runs on Stop hook to extract reusable patterns from Claude Code sessions
-#
-# Why Stop hook instead of UserPromptSubmit:
-# - Stop runs once at session end (lightweight)
-# - UserPromptSubmit runs every message (heavy, adds latency)
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "Stop": [{
-#       "matcher": "*",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/skills/continuous-learning/evaluate-session.sh"
-#       }]
-#     }]
-#   }
-# }
-#
-# Patterns to detect: error_resolution, debugging_techniques, workarounds, project_specific
-# Patterns to ignore: simple_typos, one_time_fixes, external_api_issues
-# Extracted skills saved to: ~/.claude/skills/learned/
-
-set -e
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-CONFIG_FILE="$SCRIPT_DIR/config.json"
-LEARNED_SKILLS_PATH="${HOME}/.claude/skills/learned"
-MIN_SESSION_LENGTH=10
-
-# Load config if exists
-if [ -f "$CONFIG_FILE" ]; then
-  if ! command -v jq &>/dev/null; then
-    echo "[ContinuousLearning] jq is required to parse config.json but not installed, using defaults" >&2
-  else
-    MIN_SESSION_LENGTH=$(jq -r '.min_session_length // 10' "$CONFIG_FILE")
-    LEARNED_SKILLS_PATH=$(jq -r '.learned_skills_path // "~/.claude/skills/learned/"' "$CONFIG_FILE" | sed "s|~|$HOME|")
-  fi
-fi
-
-# Ensure learned skills directory exists
-mkdir -p "$LEARNED_SKILLS_PATH"
-
-# Get transcript path from stdin JSON (Claude Code hook input)
-# Falls back to env var for backwards compatibility
-stdin_data=$(cat)
-transcript_path=$(echo "$stdin_data" | grep -o '"transcript_path":"[^"]*"' | head -1 | cut -d'"' -f4)
-if [ -z "$transcript_path" ]; then
-  transcript_path="${CLAUDE_TRANSCRIPT_PATH:-}"
-fi
-
-if [ -z "$transcript_path" ] || [ ! -f "$transcript_path" ]; then
-  exit 0
-fi
-
-# Count messages in session
-message_count=$(grep -c '"type":"user"' "$transcript_path" 2>/dev/null || echo "0")
-
-# Skip short sessions
-if [ "$message_count" -lt "$MIN_SESSION_LENGTH" ]; then
-  echo "[ContinuousLearning] Session too short ($message_count messages), skipping" >&2
-  exit 0
-fi
-
-# Signal to Claude that session should be evaluated for extractable patterns
-echo "[ContinuousLearning] Session has $message_count messages - evaluate for extractable patterns" >&2
-echo "[ContinuousLearning] Save learned skills to: $LEARNED_SKILLS_PATH" >&2