refactor(odin): Ported remove command.

cmd_remove.odin

@@ -0,0 +1,42 @@
+package main
+
+import "core:fmt"
+import "core:path/filepath"
+import "core:strings"
+
+cmd_remove :: proc(cmd: ^Command) {
+    if len(cmd.args) != 1 {
+        fmt.println("Usage: envr remove <path>")
+        return
+    }
+
+    path := cmd.args[0]
+    if len(strings.trim_space(path)) == 0 {
+        fmt.println("Error: No path provided")
+        return
+    }
+
+    abs_path: string
+    if filepath.is_abs(path) {
+        abs_path = path
+    } else {
+        resolved, abs_err := filepath.abs(path)
+        if abs_err != nil {
+            fmt.printf("Error getting absolute path: %v\n", abs_err)
+            return
+        }
+        abs_path = resolved
+    }
+
+    db, db_ok := db_open()
+    if !db_ok {
+        return
+    }
+    defer db_close(&db)
+
+    if !db_delete(&db, abs_path) {
+        return
+    }
+
+    fmt.printf("Removed %s from the database\n", abs_path)
+}