Normalizes Hashtable, OrderedDictionary, PSObject-wrapped, and typed generic dictionaries into IDictionary<string,string>[] before parameter binding, enabling native PowerShell @{...} and [ordered]@{...} literals against the strongly-typed -Secrets parameter on New-/Update-InfisicalSecret. Adds 8 transformation tests; 174/174 passing.
- Endpoint registry: register POST/PATCH/DELETE /api/v4/secrets/batch as preferred candidates for BulkCreate/Update/Delete; v3 raw routes retained as automatic fallback.
- DTOs: add projectId (required for v4) alongside workspaceId on the three batch request envelopes; both serialized when set, both ignored when null.
- SecretsClient: populate ProjectId in CreateBatch/UpdateBatch/DeleteBatch so v4 succeeds on first attempt.
- Cmdlets: -Secrets on New/Update-InfisicalSecret changed from Hashtable[] to IDictionary<string,string>[] for stronger typing and tab-completion; converter rewritten to accept IEnumerable<IDictionary<string,string>>. TagIds parsed from comma-separated string; nested Metadata dropped from bulk hashtable surface (still settable programmatically on bulk items).
- Tests: 166 passing (was 161). Bulk endpoints now resolve to v4 primary with v3 fallback; new tests verify projectId envelope serialization, dual-key omission, and TagIds trimming.
- Bulk parameter sets on New-/Update-/Remove-InfisicalSecret via v3/secrets/batch/raw.
- Copy-InfisicalSecret cmdlet wrapping v4/secrets/duplicate.
- InfisicalCmdletBase.Resolve{ProjectId,Environment,SecretPath,ApiVersion,OrganizationId} with verbose inheritance logging.
- All resource cmdlets refactored to use the resolution helpers.
- InfisicalBulkSecretConverter for flexible Hashtable -> DTO mapping.
- 22 new unit tests covering registry, DTOs, converter, and inheritance helpers. Total: 161 passing.
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