feat: increase max_tokens to 1024 for planning cycles to prevent JSON truncation

backend.py

@@ -1983,7 +1983,7 @@ async def execute_build_cycle(project_name: str, goal: str):
         res = await nim_client.chat.completions.create(
             model=RECOMMENDED_MODEL,
             messages=[{"role": "user", "content": plan_prompt}],
-            max_tokens=300
+            max_tokens=1024
         )
         raw = res.choices[0].message.content.strip()
     except Exception as e:
@@ -1993,7 +1993,7 @@ async def execute_build_cycle(project_name: str, goal: str):
                 res = await mistral_client.chat.completions.create(
                     model="mistral-large-latest",
                     messages=[{"role": "user", "content": plan_prompt}],
-                    max_tokens=300
+                    max_tokens=1024
                 )
                 raw = res.choices[0].message.content.strip()
             else:
@@ -2119,7 +2119,7 @@ async def execute_eternity_cycle(project_name: str, goal: str):
         res = await nim_client.chat.completions.create(
             model=RECOMMENDED_MODEL,
             messages=[{"role": "user", "content": plan_prompt}],
-            max_tokens=300
+            max_tokens=1024
         )
         raw = res.choices[0].message.content.strip()
     except Exception as e:
@@ -2129,7 +2129,7 @@ async def execute_eternity_cycle(project_name: str, goal: str):
                 res = await mistral_client.chat.completions.create(
                     model="mistral-large-latest",
                     messages=[{"role": "user", "content": plan_prompt}],
-                    max_tokens=300
+                    max_tokens=1024
                 )
                 raw = res.choices[0].message.content.strip()
             else: