ThreadManager.updateConversationThreadMap
Cases for New Point creation:

1. No current Root Point (ThreadMap = empty) - new Point becomes a Root Point
2. Under existing Regular Point (ThreadMap = not empty) - new Point is added to the PointChildren of the Root Point
3. 1st Sharding - Regular Point becomes Shard Point (ThreadMap = not empty, ShardList = empty) - Shard is created and added to ShardList, new Point is added to ShardPointChildren
4. 2nd Sharding - Shard already exists (ThreadMap = not empty, ShardList = not empty) - Shard is added to ShardList, new Point is added to ShardPointChildren

Flow:
HomeScreen -> HomeScreenManager -> ThreadManager -> PointManager | ShardManager

• current Point = Point/Shard currently in focus on screen
• new Point = Point/Shard created when new Prompt sent

1. Prompt

1. 1. Table - code Flow:

1. 2. Table - Point/Shard states:

2. SubPrompt - Sharding

2. 1. Table - code Flow

2. 2. Table - Point/Shard states:

**** Important:¶

Difference between 1st and 2nd Sharding:

• on 1st Sharding - shardsList = null -> Shard just added to empty list
• on 2nd Sharding - shardsList != null -> Shard needs to be inserted into the list at certain index

Claude Code - prompt to implement HandleSubPrompt flow (with Sharding) that starts in the HomeScreenManager¶

In my flutter app I have Point model (from which a node in tree view is created). There is a regular Point, and there is a Shard Point. Shard Point is the one that has one or more ShardDTOs in it's shardList list. Shards are created by sharding: user enters sub-prompt, and from that new Shard is created and added to shardsList.

I have already implemented a flow for handling Prompts for regular Points. It goes:
PromptInputField -> HomeScreen -> HomeScreenManager -> ThreadManager -> PointManager (when there is no Sharding).

I now want to implement a flow that will handle sub-Prompts (which creates Shard Points), where the flow would go:
PromptInputField -> HomeScreen -> HomeScreenManager -> ThreadManager -> ShardManager (when there is Sharding (creation of new Shards)). There can be use of existing methods in PointManager where applicable, but main logic should reside in the ShardManager.

The branching between Sharding and No Sharding flows is currently in the HomeScreenManger in the method: handlePrompt(). Try to see if it should stay there, or should be moved to the ThreadManager.

Look at my code and suggest minimal changes that will make this work.

Errors in the project:
Bash(cd "D:\osobno\kommentall\fe_kommentall" && dart analyze --fatal-infos)
⎿  Error: Analyzing fe_kommentall...

 warning - lib\managers\home_screen_manager.dart:21:24 - The value of the field '_backendService' isn't used. Try removing the field, or using it. - unused_field
 warning - lib\managers\home_screen_manager.dart:124:13 - The receiver can't be 'null' because of short-circuiting, so the null-aware operator '?.' can't be used. Try replacing the operator '?.' with '.'. - invalid_null_aware_operator
            - The operator '?.' is causing the short circuiting at lib\managers\home_screen_manager.dart:123:45.
 warning - lib\managers\openai_request_manager.dart:243:65 - The left operand can't be null, so the right operand is never executed. Try removing the operator and the right operand. - dead_null_aware_expression
 warning - lib\managers\shard_manager.dart:98:11 - The receiver can't be 'null' because of short-circuiting, so the null-aware operator '?.' can't be used. Try replacing the operator '?.' with '.'. - invalid_null_aware_operator
            - The operator '?.' is causing the short circuiting at lib\managers\shard_manager.dart:97:62.
 warning - lib\managers\shard_manager.dart:100:64 - The left operand can't be null, so the right operand is never executed. Try removing the operator and the right operand. - dead_null_aware_expression
 warning - lib\managers\shard_manager.dart:101:60 - The left operand can't be null, so the right operand is never executed. Try removing the operator and the right operand. - dead_null_aware_expression
 warning - lib\managers\shard_manager.dart:200:8 - The declaration '_validateShardList' isn't referenced. Try removing the declaration of '_validateShardList'. - unused_element
 warning - lib\managers\thread_manager.dart:4:8 - Unused import: 'package:objectid/objectid.dart'. Try removing the import directive. - unused_import
 warning - lib\managers\thread_manager.dart:29:43 - The operand can't be 'null', so the condition is always 'false'. Try removing the condition, an enclosing condition, or the whole conditional statement. - unnecessary_null_comparison
 warning - lib\managers\thread_manager.dart:40:50 - The operand can't be 'null', so the condition is always 'true'. Remove the condition. - unnecessary_null_comparison
 warning - lib\managers\tree_view_manager.dart:74:37 - The operand can't be 'null', so the condition is always 'true'. Remove the condition. - unnecessary_null_comparison
 warning - lib\managers\tree_view_manager.dart:75:63 - The '!' will have no effect because the receiver can't be null. Try removing the '!' operator. - unnecessary_non_null_assertion
    info - lib\api_services\openai_service.dart:17:7 - Missing type annotation. Try adding a type annotation. - strict_top_level_inference

 13 issues found.