feat(gb32960): introduce parser profile registry and rule-based vendor selector

Adds a per-context routing layer for InfoBlock parsers, so different
peers can be routed to different parser sets (e.g. standard GB/T 32960
vs. a vendor extension that adds blocks in the 0x30~0x7F reserved range).

New types in protocol-gb32960:
- Gb32960ParserContext (record): version + vin + platformAccount tuple
- codec/profile/VendorExtensionCatalog: name -> list of vendor parsers
- codec/profile/Gb32960ProfileRegistry: name -> InfoBlockParserRegistry,
  with a default registry built from the standard parsers and one extra
  registry per enabled vendor extension (default + vendor parsers)
- codec/profile/VendorExtensionSelector: interface returning the matching
  extension name (or null) for a given context
- codec/profile/RuleBasedVendorExtensionSelector: top-down first-match
  scan over Gb32960Properties.vendorExtensions with a (account,vin)
  cache keyed on case-insensitive normalized form

Gb32960Properties gains a `vendorExtensions` list with per-entry
`name` + `match` (platformAccounts / vins / vinPrefixes). All matching
fields are OR'd within an entry; entries are scanned top-down with
first-match-wins as documented.

Gb32960BodyParser keeps its legacy single-registry constructor for
back-compat (used by existing tests) and adds a new constructor that
takes the profile registry + selector. The parse loop now lives under
parse(Gb32960ParserContext, ByteBuffer); the legacy parse(version,body)
delegates to it with a minimal context (selector returns null -> default).

This commit only introduces the framework. Vendor parsers, autoconfig
wiring, and decoder/handler context plumbing land in follow-ups.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

protocol-gb32960/src/test/java/com/lingniu/ingest/protocol/gb32960/codec/profile/RuleBasedVendorExtensionSelectorTest.java

@@ -0,0 +1,106 @@
+package com.lingniu.ingest.protocol.gb32960.codec.profile;
+
+import com.lingniu.ingest.protocol.gb32960.codec.Gb32960ParserContext;
+import com.lingniu.ingest.protocol.gb32960.config.Gb32960Properties;
+import com.lingniu.ingest.protocol.gb32960.model.ProtocolVersion;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Set;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+class RuleBasedVendorExtensionSelectorTest {
+
+    @Test
+    void platformAccountMatchHits() {
+        var ext = entry("guangdong-fc", List.of("lingniu"), List.of(), List.of());
+        var selector = new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc"));
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "LNV1234567890ABCD", "lingniu");
+        assertThat(selector.select(ctx)).isEqualTo("guangdong-fc");
+    }
+
+    @Test
+    void vinExactMatchHits() {
+        var ext = entry("guangdong-fc", List.of(), List.of("LNV1234567890ABCD"), List.of());
+        var selector = new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc"));
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "lnv1234567890abcd", null);
+        assertThat(selector.select(ctx))
+                .as("VIN match should be case-insensitive")
+                .isEqualTo("guangdong-fc");
+    }
+
+    @Test
+    void vinPrefixMatchHits() {
+        var ext = entry("guangdong-fc", List.of(), List.of(), List.of("LNVFC", "LZG"));
+        var selector = new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc"));
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "LNVFC0001", null);
+        assertThat(selector.select(ctx)).isEqualTo("guangdong-fc");
+    }
+
+    @Test
+    void noMatchReturnsNull() {
+        var ext = entry("guangdong-fc", List.of("other"), List.of(), List.of());
+        var selector = new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc"));
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "ZZZ", "lingniu");
+        assertThat(selector.select(ctx)).isNull();
+    }
+
+    @Test
+    void firstMatchWinsTopDown() {
+        var first = entry("guangdong-fc", List.of("lingniu"), List.of(), List.of());
+        var second = entry("guangdong-fc", List.of(), List.of(), List.of("LNV"));
+        var selector = new RuleBasedVendorExtensionSelector(
+                List.of(first, second), Set.of("guangdong-fc"));
+        // 即便两条都能命中，应返回第一条匹配 entry 的 name（这里凑巧一样）
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "LNV1", "lingniu");
+        assertThat(selector.select(ctx)).isEqualTo("guangdong-fc");
+    }
+
+    @Test
+    void emptyConfigReturnsNullWithoutScanning() {
+        var selector = new RuleBasedVendorExtensionSelector(List.of(), Set.of("guangdong-fc"));
+        var ctx = new Gb32960ParserContext(ProtocolVersion.V2016, "ANY", "ANY");
+        assertThat(selector.select(ctx)).isNull();
+    }
+
+    @Test
+    void unknownExtensionNameRejectedAtConstruction() {
+        var ext = entry("not-in-catalog", List.of("x"), List.of(), List.of());
+        assertThatThrownBy(() ->
+                new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc")))
+                .isInstanceOf(IllegalStateException.class)
+                .hasMessageContaining("not-in-catalog");
+    }
+
+    @Test
+    void resultIsCachedPerAccountVinTuple() {
+        var ext = entry("guangdong-fc", List.of("lingniu"), List.of(), List.of());
+        var selector = new RuleBasedVendorExtensionSelector(List.of(ext), Set.of("guangdong-fc"));
+        var ctx1 = new Gb32960ParserContext(ProtocolVersion.V2016, "VIN1", "lingniu");
+        var ctx2 = new Gb32960ParserContext(ProtocolVersion.V2016, "VIN1", "lingniu");
+        selector.select(ctx1);
+        selector.select(ctx2);
+        // 同一个 (account, vin) 应只产生一个 cache 条目
+        assertThat(selector.cacheSize()).isEqualTo(1);
+
+        var ctx3 = new Gb32960ParserContext(ProtocolVersion.V2016, "VIN2", "lingniu");
+        selector.select(ctx3);
+        assertThat(selector.cacheSize()).isEqualTo(2);
+    }
+
+    private static Gb32960Properties.VendorExtension entry(String name,
+                                                           List<String> accounts,
+                                                           List<String> vins,
+                                                           List<String> vinPrefixes) {
+        var e = new Gb32960Properties.VendorExtension();
+        e.setName(name);
+        var m = new Gb32960Properties.VendorExtension.Match();
+        m.setPlatformAccounts(accounts);
+        m.setVins(vins);
+        m.setVinPrefixes(vinPrefixes);
+        e.setMatch(m);
+        return e;
+    }
+}