feat: auto-bypass daemon for wisp operations (bd-ta4r)

Wisp operations (mol wisp *, mol burn, mol squash) and commands operating on
ephemeral issue IDs (bd-eph-*, gt-eph-*, eph-*) now auto-bypass the daemon.

Since wisps are ephemeral (Ephemeral=true) and never exported to JSONL,
the daemon cannot help with them anyway. This eliminates the need to manually
add --no-daemon for every wisp operation.

Changes:
- Add isWispOperation() helper to detect wisp commands and ephemeral IDs
- Add FallbackWispOperation constant for daemon status tracking
- Insert wisp detection in PersistentPreRunE daemon connection logic
- Update error messages in wisp.go, mol_burn.go, mol_squash.go
- Add comprehensive unit tests for isWispOperation()

cmd/bd/mol_squash.go

@@ -66,14 +66,10 @@ func runMolSquash(cmd *cobra.Command, args []string) {
 
 	ctx := rootCtx
 
-	// mol squash requires direct store access
+	// mol squash requires direct store access (daemon auto-bypassed for wisp ops)
 	if store == nil {
-		if daemonClient != nil {
-			fmt.Fprintf(os.Stderr, "Error: mol squash requires direct database access\n")
-			fmt.Fprintf(os.Stderr, "Hint: use --no-daemon flag: bd --no-daemon mol squash %s ...\n", args[0])
-		} else {
-			fmt.Fprintf(os.Stderr, "Error: no database connection\n")
-		}
+		fmt.Fprintf(os.Stderr, "Error: no database connection\n")
+		fmt.Fprintf(os.Stderr, "Hint: run 'bd init' or 'bd import' to initialize the database\n")
 		os.Exit(1)
 	}