addrkit: quality evaluation harness + parser hardening

- add internal/eval: deterministic citizen-style perturbation harness
  (typos, case, word order, abbreviations, filler words, dropped units)
- parser: strip all street-type tokens, filler words (город/дом/д/область),
  trailing apartment (кв N); handle letter-before-fraction and corpus letters
- matching: token-aware typo-tolerant street similarity; wider ambiguity
  margin to surface near-collisions instead of guessing
- seed: correct parse-rate accounting, structure-aware de-duplication
- CLI: 'addrkit eval' command; README with measured results

Measured on the real 73,936-row registry: 99.98% parsed, 0 wrong-house
safety violations across 34k+ perturbed cases.

internal/domain/address/parse_test.go

@@ -77,6 +77,24 @@ func TestParseHouseBlock(t *testing.T) {
 			wantOrdinal: "1", wantName: "ельцовка", wantType: "улица",
 			wantHouse: "1", wantBLetter: "д", wantHas: true,
 		},
+		{
+			name:     "two type words in a registry name",
+			raw:      "Гусинобродский Тракт улица 21",
+			wantName: "гусинобродский", wantType: "тракт",
+			wantHouse: "21", wantHas: true,
+		},
+		{
+			name:     "name coincides with its type word",
+			raw:      "Набережная улица 5",
+			wantName: "набережная", wantType: "набережная",
+			wantHouse: "5", wantHas: true,
+		},
+		{
+			name:     "abbreviations dom and flat",
+			raw:      "ул. Кошурникова, д. 11/1 кв. 5",
+			wantName: "кошурникова", wantType: "улица",
+			wantHouse: "11", wantFrac: "1", wantHas: true,
+		},
 	}
 
 	for _, tt := range tests {