release: bump tlBaseVersion to 1.2 (cuts v1.2.0)

[luksow]

Tiny one-line change: tlBaseVersion: 1.1 → 1.2. Pre-requisite for tagging v1.2.0 since sbt-typelevel verifies the tag matches the configured base.

What's in v1.2.0 (since v1.1.1)

⚠️ Breaking changes

• feat!: replace BaklavaHttpMethod/Status/Headers with sttp-model types (#34) #75 (Migrate current http model to sttp-model #34) feat!: replaced BaklavaHttpMethod / BaklavaHttpStatus / BaklavaHeader with sttp-model types (sttp.model.Method, StatusCode, Header). Any user code importing the old Baklava* types or using their constructors needs updating.
• withSetup: rename eager .request to .onRequest for Scala 2.13 inference (#69) #73 (withSetup: lazy .request lambda requires explicit parameter type on Scala 2.13 #69) withSetup DSL: .request renamed to .onRequest (eager-vs-deferred call-site fix for Scala 2.13 inference). Existing tests using .request won't compile.

New generators

• feat: Postman Collection v2.1 generator (#23) #91 (Generate Insomnia/Postman/Bruno collection #23) Postman Collection v2.1 generator — emits target/baklava/postman/collection.json
• feat: Scala sttp-client generator (#22) #93 (Generate standalone Scala HTTP client for a given protocol #22) Scala sttp-client generator — curried, typed sttp-client4 + circe source tree under target/baklava/sttpclient/
• feat: TypeScript fetch client generator (#87) #92 (Generate a standalone typescript-fetch client #87) TypeScript fetch client generator — typed fetch-based TS client under target/baklava/tsfetch/

Routing / SwaggerUI

• feat: http4s routes for serving OpenAPI + Swagger UI (#54) #79 (Implement http4s routes for serving open API and swagger UI #54) http4s routes for serving the generated OpenAPI spec + SwaggerUI (parity with the existing pekko-http variant)
• pekko routes: serve simple formatter, webjar-derived version, typed content-types #85 pekko routes: derive SwaggerUI version from the webjar, set correct yaml/js content-types
• feat: multipart/form-data request body support (#81) #83 (Support multipart/form-data request bodies #81) multipart/form-data request body support
• feat: honor declared Content-Type for file uploads (#52) #86 (Ability to document file upload #52) honor the declared Content-Type for file uploads

DSL

• Add withSetup DSL for deferred test inputs (#57) #58 (Test ergonomics: path params, bodies, and setup are bound at class construction — proposal for deferred/per-test inputs #57) withSetup DSL for deferred test inputs

OpenAPI generator improvements

• openapi: merge parameter declarations across all calls in operation (#66) #71 (OpenAPI: parameter declarations use calls.head, non-head variants silently dropped #66) merge parameter declarations across all calls in an operation
• Generator audit: fix correctness, escape user data, close #63 #64 #65 generator audit: correctness fixes + escape user-controlled data; closes OpenAPI: multiple response content-types on the same status overwrite each other #63 and OpenAPI: request content-type omitted when no body schema is captured #64
• Stabilize example order and merge response descriptions (#50, #51) #62 (Description of the response is taken from first example #50, Examples of responds are in random order in open-api #51) stabilize example ordering + merge response descriptions
• fix: encode Schema default as structured JSON (#61) #82 (Schema default serialization uses .toString, producing invalid OpenAPI defaults #61) encode Schema.default as structured JSON (was string-encoded)
• Merge metadata when multiple supports share the same path+method #60 merge metadata when multiple supports share the same path + method
• Fix default value "None" rendered for optional query parameters #59 fix default value "None" rendered for optional query parameters

Simple HTML

• simple: tag-grouped index + per-call curl with copy button #78 tag-grouped index + per-call curl snippet with copy button

Misc / chore

• refactor: collapse security-scheme + security-contribution boilerplate #89 collapse security-scheme + security-contribution boilerplate
• test: comprehensive gold/snapshot test for all three generators #76 comprehensive gold / snapshot test covering all generators end-to-end
• chore: TODO sweep — case-insensitive header assertion + stale marker removal #74 TODO sweep — case-insensitive response header assertion + verified query-URI helper
• docs: document baklava.postProcessorPackages config key (#67) #70 (OpenAPI: document baklava.postProcessorPackages config key in docs/configuration.md #67) docs for baklava.postProcessorPackages config key
• docs: fix broken documentation links in README #56 README + docs landing-page polish, syntax highlighting fixes
• website: pin webpack to 5.98.x for webpackbar compatibility #77 website: pin webpack to 5.98.x for webpackbar compatibility

Test plan

• sbt +test clean across Scala 2.13.18 and 3.3.7 on all merged PRs.
• Comprehensive gold spec exercises all six output formats end-to-end.
• Generated outputs verified against real consumers (sttp-client4-circe compile, TypeScript tsc --noEmit, end-to-end harness against a local echo server).