Add compare and tui commands with shared sort/filter CLI wiring

- add pubcli compare command to rank nearby stores by filtered deal coverage, bogo count, aggregate score, and distance tie-breaks
- support --count (1-10) for comparison breadth and emit structured JSON/text output with ranked entries
- add robust distance token parsing to tolerate upstream distance string formatting differences
- add pubcli tui interactive terminal browser with paging, deal detail drill-in, and explicit TTY validation for stdin/stdout
- share deal-filter flag registration across root/tui/compare and add --sort support in root execution path
- validate sort mode early and allow canonical aliases (end, expiry, expiration) while preserving explicit invalid-arg guidance
- expand tolerant CLI normalization for new commands/flags and aliases (orderby, sortby, count, bare-flag rewrite for compare/tui)
- update quick-start flag list and integration tests to cover compare help and normalization behavior

cmd/cli_tolerance.go

@@ -18,13 +18,17 @@ var knownFlags = map[string]flagSpec{
 	"department": {name: "department", requiresValue: true},
 	"bogo":       {name: "bogo", requiresValue: false},
 	"query":      {name: "query", requiresValue: true},
+	"sort":       {name: "sort", requiresValue: true},
 	"limit":      {name: "limit", requiresValue: true},
+	"count":      {name: "count", requiresValue: true},
 	"help":       {name: "help", requiresValue: false},
 }
 
 var knownCommands = []string{
 	"categories",
 	"stores",
+	"compare",
+	"tui",
 	"completion",
 	"help",
 }
@@ -36,6 +40,8 @@ var flagAliases = map[string]string{
 	"storeno":      "store",
 	"dept":         "department",
 	"search":       "query",
+	"orderby":      "sort",
+	"sortby":       "sort",
 	"max":          "limit",
 }
 
@@ -156,7 +162,7 @@ func bareFlagRewriteAllowed(command string) bool {
 	// Some commands (for example `stores` and `categories`) are flag-only, so
 	// rewriting bare tokens like `zip` -> `--zip` is helpful there.
 	switch command {
-	case "stores", "categories":
+	case "stores", "categories", "compare", "tui":
 		return true
 	default:
 		return false