fix(multicall): resolve critical multicall parsing corruption issues

- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing
- Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives
- Added LRU caching system for address validation with 10-minute TTL
- Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures
- Fixed duplicate function declarations and import conflicts across multiple files
- Added error recovery mechanisms with multiple fallback strategies
- Updated tests to handle new validation behavior for suspicious addresses
- Fixed parser test expectations for improved validation system
- Applied gofmt formatting fixes to ensure code style compliance
- Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot
- Resolved critical security vulnerabilities in heuristic address extraction
- Progress: Updated TODO audit from 10% to 35% complete

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.golangci-cache/47/47043a7603fbca4c5ffa9b2d7dace06e477fd7e432b7b1a74936ca7663e96282-a

@@ -0,0 +1 @@
+v1 47043a7603fbca4c5ffa9b2d7dace06e477fd7e432b7b1a74936ca7663e96282 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324482443609701

.golangci-cache/47/47151318d5e65e04a222ca2737bf3d22ef1c3ba49bc82ef22c21f6b0f372aa1c-a

@@ -0,0 +1 @@
+v1 47151318d5e65e04a222ca2737bf3d22ef1c3ba49bc82ef22c21f6b0f372aa1c 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324480861145838

.golangci-cache/47/47199bc7b35bdcf7859b593b3b575f8772785bd7fa86aa68ff89e03828d5d8b5-a

@@ -0,0 +1 @@
+v1 47199bc7b35bdcf7859b593b3b575f8772785bd7fa86aa68ff89e03828d5d8b5 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323119606463886

.golangci-cache/47/471b36d787d081a0a82081c7e2578a1401c1cf8ecdc0e01056118f9dcc3b5989-a

@@ -0,0 +1 @@
+v1 471b36d787d081a0a82081c7e2578a1401c1cf8ecdc0e01056118f9dcc3b5989 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323121495154692

.golangci-cache/47/471e30b3303daa9a55480e8c67b32673503be39e4a255643fe141ce9f24a0a3d-a

@@ -0,0 +1 @@
+v1 471e30b3303daa9a55480e8c67b32673503be39e4a255643fe141ce9f24a0a3d 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323117251369474

.golangci-cache/47/47320a7f443fd20e402ca9962ffdccccc6c064035977e835b0e45905dc38b2a0-a

@@ -0,0 +1 @@
+v1 47320a7f443fd20e402ca9962ffdccccc6c064035977e835b0e45905dc38b2a0 e535674ed4c67d82c3b9aab4e489e128eb539a07bd7a889f4a1ccadb888f0d1b                  122  1760323506212831936

.golangci-cache/47/47358f776bad1af9cd662ac9689031f369939a94a94916403e6aba4e58e5b762-a

@@ -0,0 +1 @@
+v1 47358f776bad1af9cd662ac9689031f369939a94a94916403e6aba4e58e5b762 f6deae3aadbbab9b0b873473622b4a7c9a47b960eb3111213f1660de7778aaa8                  191  1760323125807402311

.golangci-cache/47/473979e6e491c3102c344f95950345a17bcb4cea74987ac6b9351c6c38d66b19-a

@@ -0,0 +1 @@
+v1 473979e6e491c3102c344f95950345a17bcb4cea74987ac6b9351c6c38d66b19 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324478697097142

.golangci-cache/47/473ac5329cd95f81494e35c223639467e794469eec416cb8ab134d98df7a2d88-a

@@ -0,0 +1 @@
+v1 473ac5329cd95f81494e35c223639467e794469eec416cb8ab134d98df7a2d88 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323136833329046

.golangci-cache/47/4741a10d0bc1499d40ddb05866ddbeb2eab511d7c51b39362cf730d81c69c753-a

@@ -0,0 +1 @@
+v1 4741a10d0bc1499d40ddb05866ddbeb2eab511d7c51b39362cf730d81c69c753 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323117156717233

.golangci-cache/47/474fb2db54c6bd67ba630870296d35faf88ce456c02e7e088e83c1b7f58594eb-a

@@ -0,0 +1 @@
+v1 474fb2db54c6bd67ba630870296d35faf88ce456c02e7e088e83c1b7f58594eb 6419f41ef5d43ef895581184b021740fff8f64390b4aac6aff71715a7912a7d4                  211  1760324496547742302

.golangci-cache/47/4751dea9481bbcc480db9dfdc4d1e6f83442fba09236d8ed8d0e85cd3b611c17-a

@@ -0,0 +1 @@
+v1 4751dea9481bbcc480db9dfdc4d1e6f83442fba09236d8ed8d0e85cd3b611c17 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323120904180246

.golangci-cache/47/47553f40e6ba540653f52eb7151afbf446aac34b48e0df03af4af2146fe603b2-a

@@ -0,0 +1 @@
+v1 47553f40e6ba540653f52eb7151afbf446aac34b48e0df03af4af2146fe603b2 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324482876492822

.golangci-cache/47/4757f05225b2bb0157a7c1d6864e12d26b3be41c2de922adeb34e308d15502fa-a

@@ -0,0 +1 @@
+v1 4757f05225b2bb0157a7c1d6864e12d26b3be41c2de922adeb34e308d15502fa ecff7e46d21beeab3f4421f76856e93f1beef079a91c628c13ad0fe682d7c199                  452  1760324880894509166

.golangci-cache/47/4762fa51a469d85b4ccd2b2367c8f722284b2606df02c141505957df1c221885-a

@@ -0,0 +1 @@
+v1 4762fa51a469d85b4ccd2b2367c8f722284b2606df02c141505957df1c221885 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323120709245256

.golangci-cache/47/476f884d9b37a4790e05ba124cc618f328b7a72dccb984e0470fcd95b3137b4b-a

@@ -0,0 +1 @@
+v1 476f884d9b37a4790e05ba124cc618f328b7a72dccb984e0470fcd95b3137b4b 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324483702627223

.golangci-cache/47/477a3031b82d39721a05f943fffb7c434ece6c4e3d8c13275c7172085ae8bf95-a

@@ -0,0 +1 @@
+v1 477a3031b82d39721a05f943fffb7c434ece6c4e3d8c13275c7172085ae8bf95 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323123171144794

.golangci-cache/47/478753f1b5ba05dc38bef220dbece5813f0c98c75bfd00d55ee5b4f58729e871-a

@@ -0,0 +1 @@
+v1 478753f1b5ba05dc38bef220dbece5813f0c98c75bfd00d55ee5b4f58729e871 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323128027345800

.golangci-cache/47/478bbde2510259827722c75339681d1581c46c564afcbc82c2d1ea6847ce742d-a

@@ -0,0 +1 @@
+v1 478bbde2510259827722c75339681d1581c46c564afcbc82c2d1ea6847ce742d 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324481331989081

.golangci-cache/47/47959e4d358f2ee2bddfbd2ee0cd9f27fa4292c2892c0c76fb8fc9467b113821-a

@@ -0,0 +1 @@
+v1 47959e4d358f2ee2bddfbd2ee0cd9f27fa4292c2892c0c76fb8fc9467b113821 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323120907932530

.golangci-cache/47/47a1b78667d9be275a4b0860183249518dfd47b6db0ae18c133b69a412d833af-a

@@ -0,0 +1 @@
+v1 47a1b78667d9be275a4b0860183249518dfd47b6db0ae18c133b69a412d833af 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323119333387184

.golangci-cache/47/47ba72e2b03f70e165f4fac971c524c32be26aa5954b6da47235cf9d6f1addfd-a

@@ -0,0 +1 @@
+v1 47ba72e2b03f70e165f4fac971c524c32be26aa5954b6da47235cf9d6f1addfd 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324481558815397

.golangci-cache/47/47bf2c712b0e623ecc4d06e95d261df07b4c09e461ba6f412f233eb2723432c8-a

@@ -0,0 +1 @@
+v1 47bf2c712b0e623ecc4d06e95d261df07b4c09e461ba6f412f233eb2723432c8 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323497731541701

.golangci-cache/47/47c6eaa13c15b4120f261370951bf8a42354ea97a3ab0f893c1e43ee9382f687-a

@@ -0,0 +1 @@
+v1 47c6eaa13c15b4120f261370951bf8a42354ea97a3ab0f893c1e43ee9382f687 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324483146362243

.golangci-cache/47/47cce17a321a07d385ecde7da00843faa53095a98f70872278ec2e759e306e7d-a

@@ -0,0 +1 @@
+v1 47cce17a321a07d385ecde7da00843faa53095a98f70872278ec2e759e306e7d 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324480979774012

.golangci-cache/47/47e1d566981a7809d2800b2a257ffd5282d90aeb5a10df9e88d41a64c764f776-a

@@ -0,0 +1 @@
+v1 47e1d566981a7809d2800b2a257ffd5282d90aeb5a10df9e88d41a64c764f776 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324478706892044

.golangci-cache/47/47e2efa4bdd80c1fdd90c1e39196280cd0ed90339dce6e34eaefe9799700d55e-a

@@ -0,0 +1 @@
+v1 47e2efa4bdd80c1fdd90c1e39196280cd0ed90339dce6e34eaefe9799700d55e 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323117204411059

.golangci-cache/47/47e6dca76c5105695edfc5ee3b955b0fc02695ed0e26ecb5dd507198863c18d4-a

@@ -0,0 +1 @@
+v1 47e6dca76c5105695edfc5ee3b955b0fc02695ed0e26ecb5dd507198863c18d4 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760323128569549150

.golangci-cache/47/47ec520aa62e5459024de5e3c1b5c1ec0a62b1f6e735c4ef3299ec605799bb1f-a

@@ -0,0 +1 @@
+v1 47ec520aa62e5459024de5e3c1b5c1ec0a62b1f6e735c4ef3299ec605799bb1f bc2ba291ff2e9f27e380af7d6583321262d39ccd16b616f4313d05088f086362                  264  1760323130518125648

.golangci-cache/47/47fa2295375eacc7536238c655410e6ac8e7045169e4de851727ec78035d3e23-a

@@ -0,0 +1 @@
+v1 47fa2295375eacc7536238c655410e6ac8e7045169e4de851727ec78035d3e23 9e633c25ac34483771ce61cfbe95c2553da8e2763365a4a36dc7c3465dd61cb6                 2480  1760323130241397964

.golangci-cache/47/47fa971cebe1c7a0b4f0a50f085b9afedf369014ec1e581651d8fae30d6dbaa7-a

@@ -0,0 +1 @@
+v1 47fa971cebe1c7a0b4f0a50f085b9afedf369014ec1e581651d8fae30d6dbaa7 557069598b8a7fd4858f116aabb7a5c5ed4e84219274689285c350359218c3cc                   55  1760324483986274122