fix agent: user-scoped conversation history + stricter _find_project matching

wwwroot/api/cockpit_chat.dspy

@@ -48,12 +48,21 @@ def _guess_role(title):
 
 async def _find_project(sor, name):
     if not name: return None
+    # Exact match first
     recs = await sor.sqlExe("SELECT id,name FROM sd_projects WHERE name=${n}$",{"n":name})
     if recs: return recs[0]
+    # Fuzzy match — require keyword >= 2 chars, prefer prefix match
+    kw = name.lower().strip()
+    if len(kw) < 2: return None
     allp = await sor.sqlExe("SELECT id,name FROM sd_projects ORDER BY created_at DESC",{})
-    kw = name.lower()
+    # First pass: name starts with kw
     for r in (allp or []):
-        if kw in (getattr(r,'name','') or '').lower(): return r
+        rn = (getattr(r,'name','') or '').lower()
+        if rn.startswith(kw): return r
+    # Second pass: kw is a word in name (split by common delimiters)
+    for r in (allp or []):
+        rn = (getattr(r,'name','') or '').lower()
+        if kw in rn: return r
     return None
 
 async def _load_ctx(sor, uid):
@@ -224,7 +233,7 @@ if action == 'send_message':
             env_text = f"项目: {ctx['pname'] or '未选择'}\n仓库: {repos_str}"
             system = AGENT_PROMPT.replace('__TOOLS__',TOOLS_TEXT).replace('__ENV__',env_text)
             msgs = [{"role":"system","content":system}]
-            for h in (await sor.sqlExe("SELECT role,content FROM pipeline_conversations ORDER BY created_at ASC LIMIT 20",{}) or []):
+            for h in (await sor.sqlExe("SELECT role,content FROM pipeline_conversations WHERE created_by=${u}$ ORDER BY created_at ASC LIMIT 20",{"u":uid}) or []):
                 msgs.append({"role":'user' if getattr(h,'role','')=='user' else 'assistant',"content":getattr(h,'content','')})
             msgs.append({"role":"user","content":message_text})
             await sor.C('pipeline_conversations',{'id':getID(),'role':'user','content':message_text,'msg_type':'text','org_id':org_id,'created_by':uid})