feat: add 19 fast commands (no-LLM) + incremental embeddings indexing

Fast commands for git, email, calendar, notes, search, reminders, and
diagnostics — all execute instantly without Claude CLI. Incremental
embeddings indexing in heartbeat (1h cooldown) + inline indexing after
/note, /jurnal, /email save. Fix Ollama URL (localhost → 10.0.20.161),
fix email_process.py KB path (kb/ → memory/kb/).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tools/email_process.py

@@ -54,7 +54,7 @@ WHITELIST = [
     'marius.mutu@romfast.ro',
 ]
 
-KB_PATH = Path(__file__).parent.parent / 'kb' / 'emails'
+KB_PATH = Path(__file__).parent.parent / 'memory' / 'kb' / 'emails'
 
 def slugify(text: str, max_len: int = 50) -> str:
     """Convert text to URL-friendly slug"""