refactor(arch): modular package structure — split monolithic app.py into config/db/auth/memory/search/rag/gpu + routers/

- config.py: all constants, env vars, limits, skill registry, profiles
- db.py: schema init, connection factory, skill state helpers
- security.py: PIN hashing, audit logging, rate limiting, CSRF, request helpers
- auth.py: session management, PIN verify, auth routes
- memory.py: FTS5 CRUD + remember/forget command processing
- search.py: SearXNG integration, perplexity scoring, refusal/hedge detection
- gpu.py: rocm-smi stats
- rag.py: Qdrant vector search + system prompt assembly
- routers/: conversations, memories, models, presets, profile, settings, skills, chat, search
- app.py: slim entry point, middleware, router registration only

Bumps to v1.9.0

memory.py

@@ -0,0 +1,139 @@
+"""
+JarvisChat - FTS5 memory system.
+CRUD, search, remember/forget command processing, topic detection.
+"""
+import logging
+import re
+from datetime import datetime, timezone
+from typing import Optional
+
+from db import get_db
+from config import MAX_MEMORY_FACT_CHARS
+
+log = logging.getLogger("jarvischat")
+
+REMEMBER_PATTERNS = [
+    (r"remember that (.+)", "explicit"),
+    (r"please remember (.+)", "explicit"),
+    (r"don'?t forget (.+)", "explicit"),
+    (r"note that (.+)", "explicit"),
+    (r"keep in mind (?:that )?(.+)", "explicit"),
+]
+
+FORGET_PATTERNS = [
+    r"forget (?:that )?(.+)",
+    r"don'?t remember (.+)",
+    r"remove (?:the )?memory (?:about |that )?(.+)",
+]
+
+
+def detect_topic(fact: str) -> str:
+    fact_lower = fact.lower()
+    if any(w in fact_lower for w in ["prefer", "like", "hate", "always", "never", "favorite"]):
+        return "preference"
+    elif any(w in fact_lower for w in ["working on", "building", "project", "developing"]):
+        return "project"
+    elif any(w in fact_lower for w in ["run", "install", "server", "ip", "port", "service", "docker", "systemd"]):
+        return "infrastructure"
+    elif any(w in fact_lower for w in ["my name", "i am", "i'm a", "i live", "my wife", "my partner"]):
+        return "personal"
+    return "general"
+
+
+def add_memory(fact: str, topic: str = "general", source: str = "explicit") -> Optional[int]:
+    db = get_db()
+    now = datetime.now(timezone.utc).isoformat()
+    cur = db.execute(
+        "INSERT INTO memories (fact, topic, source, created_at) VALUES (?, ?, ?, ?)",
+        (fact, topic, source, now),
+    )
+    db.commit()
+    rowid = cur.lastrowid
+    db.close()
+    log.info(f"Memory added [{topic}]: {fact[:50]}...")
+    return rowid
+
+
+def search_memories(query: str, limit: int = 5) -> list:
+    if not query.strip():
+        return []
+    db = get_db()
+    words = re.findall(r"[A-Za-z0-9_]+", query)
+    if not words:
+        db.close()
+        return []
+    safe_query = " OR ".join(word + "*" for word in words[:10])
+    try:
+        rows = db.execute(
+            "SELECT rowid, fact, topic, source, created_at, bm25(memories) AS rank "
+            "FROM memories WHERE memories MATCH ? ORDER BY rank LIMIT ?",
+            (safe_query, limit),
+        ).fetchall()
+        results = [dict(row) for row in rows]
+        log.debug(f"Memory search '{query}' returned {len(results)} results")
+    except Exception as e:
+        log.warning(f"Memory search error: {e}")
+        results = []
+    db.close()
+    return results
+
+
+def get_all_memories(topic: Optional[str] = None) -> list:
+    db = get_db()
+    if topic:
+        rows = db.execute(
+            "SELECT rowid, * FROM memories WHERE topic = ? ORDER BY created_at DESC", (topic,)
+        ).fetchall()
+    else:
+        rows = db.execute("SELECT rowid, * FROM memories ORDER BY created_at DESC").fetchall()
+    db.close()
+    return [dict(row) for row in rows]
+
+
+def delete_memory(rowid: int) -> bool:
+    db = get_db()
+    cur = db.execute("DELETE FROM memories WHERE rowid = ?", (rowid,))
+    db.commit()
+    deleted = cur.rowcount > 0
+    db.close()
+    if deleted:
+        log.info(f"Memory deleted: rowid={rowid}")
+    return deleted
+
+
+def update_memory(rowid: int, fact: str) -> bool:
+    db = get_db()
+    cur = db.execute("UPDATE memories SET fact = ? WHERE rowid = ?", (fact, rowid))
+    db.commit()
+    updated = cur.rowcount > 0
+    db.close()
+    return updated
+
+
+def get_memory_count() -> int:
+    db = get_db()
+    count = db.execute("SELECT COUNT(*) as c FROM memories").fetchone()["c"]
+    db.close()
+    return count
+
+
+def process_remember_command(user_message: str) -> Optional[str]:
+    for pattern, source in REMEMBER_PATTERNS:
+        match = re.search(pattern, user_message, re.IGNORECASE)
+        if match:
+            fact = match.group(1).strip().rstrip(".")
+            topic = detect_topic(fact)
+            add_memory(fact, topic=topic, source=source)
+            return f"✓ Remembered [{topic}]: {fact}"
+    for pattern in FORGET_PATTERNS:
+        match = re.search(pattern, user_message, re.IGNORECASE)
+        if match:
+            search_term = match.group(1).strip().rstrip(".")
+            memories = search_memories(search_term, limit=3)
+            if memories:
+                for m in memories:
+                    delete_memory(m["rowid"])
+                return f"✓ Forgot {len(memories)} memory/memories about: {search_term}"
+            else:
+                return f"✗ No memories found about: {search_term}"
+    return None