* Add .worktrees/ to .gitignore
Prevents git worktree contents from being tracked in the repository.
* Fix substring bug in dependency tree cycle detection
The cycle detection in GetDependencyTree() was using a simple substring
match which incorrectly flagged valid nodes as cycles. For example,
"bd-1" would be blocked because "bd-10" contains "bd-1" as a substring.
This bug affects any beads project where issue IDs contain each other as
substrings (BD-1/BD-10, ISSUE-1/ISSUE-10, etc).
Changed from:
AND t.path NOT LIKE '%' || i.id || '%'
To delimiter-aware checks that respect the → separator:
AND t.path != i.id
AND t.path NOT LIKE i.id || '→%'
AND t.path NOT LIKE '%→' || i.id || '→%'
AND t.path NOT LIKE '%→' || i.id
This ensures we only match complete issue IDs, not substrings.
Added TestGetDependencyTree_SubstringBug to demonstrate and prevent
regression of this issue. The test creates a chain from bd-10 to bd-1
and verifies all nodes appear in the dependency tree.
Discovered while testing dependency tree visualization with bd-1/bd-10.
8c2679a80e