Add implementation_bug entry type to recap

[acreeger]

Summary

Add a new recap entry type implementation_bug to capture when completed implementation is discovered to not work fully or breaks something else. This represents the discovery of the problem post-implementation.

Use Cases

• Tests fail after implementation is "complete"
• Build breaks when running validation
• Runtime error discovered during testing
• Existing functionality regressed
• User reports the implementation doesn't work as expected

Schema Change

Add to entry types:

type: z.enum(['decision', 'insight', 'risk', 'assumption', 'implementation_bug', 'other'])

Example entry:

{
  "id": "uuid",
  "timestamp": "2025-12-16T14:30:00Z",
  "type": "implementation_bug",
  "content": "Auth flow broken after implementation - session token not preserved during redirect"
}

Prompt Guidance

Add to recap guidance:

• implementation_bug: Discovery that completed implementation doesn't work fully or breaks something else - NOT the fix, just the problem found

Distinction

• risk = anticipated problem (before implementation)
• implementation_bug = discovered problem (after implementation thought complete)

This captures: "we thought we were done, but it's broken"

Related

• VS Code display: iloom-ai/iloom-vscode#65
• Part of Loom Context Panel feature set

[acreeger]

VS Code display: iloom-ai/iloom-vscode#65