feat(scoring): transition workflow learning and fix history UX (#39)

- add transition scoring engine to learn sequential workflows per
directory using command skeletons
- prioritize current active git branch over older branches in
suggestions
- restore strict chronological order for history navigation and bypass
AI re-ranking
- add in-memory session history for instant access to just-run commands
- fix PTY prompt not syncing when using arrow keys in the history menu
- fix history tie-breaker to properly prioritize newer commands by
assigning larger IDs
- fix potential mutex deadlock between bufferMu and pty write during
history navigation
- fix workspace git detection to remove depth limits and correctly
identify repositories with detached HEADs
- fix SQLite connection leaks in frecency queries
- fix global state leaks in history tests by snapshotting and restoring
registry states
- modernize string prefix checks using strings.CutPrefix

internal/scoring/context_rules.go

@@ -36,6 +36,22 @@ var DefaultContextRules = []ContextRule{
 		},
 		bonus: 40,
 	},
+	&SimpleContextRule{
+		check: func(ws workspace.WorkspaceInfo, cmd string) bool {
+			if !ws.HasGit || ws.GitBranch == "" {
+				return false
+			}
+			isRelevantCmd := strings.HasPrefix(cmd, "git push") || strings.HasPrefix(cmd, "git pull") ||
+				strings.HasPrefix(cmd, "git checkout") || strings.HasPrefix(cmd, "git switch") ||
+				strings.HasPrefix(cmd, "git branch") || strings.HasPrefix(cmd, "git merge") ||
+				strings.HasPrefix(cmd, "git rebase")
+			if !isRelevantCmd {
+				return false
+			}
+			return strings.HasSuffix(cmd, " "+ws.GitBranch) || strings.Contains(cmd, " "+ws.GitBranch+" ")
+		},
+		bonus: 60,
+	},
 	&SimpleContextRule{
 		check: func(ws workspace.WorkspaceInfo, cmd string) bool {
 			return ws.HasGit && (strings.HasPrefix(cmd, "git init") || strings.HasPrefix(cmd, "git clone"))