[BUG] param pdf does not work with outFilename

[FG-TUM]

Describe the bug.

When I use the param outFilename=foo to define a custom filename together with param pdf=true the pdf generation throws an error and does not terminate:

$ asyncapi generate fromTemplate AsyncAPI.yaml @asyncapi/html-template --output ./tmp_html_pdf --param pdf=true outFilename=foo --force-write
WARNING: NODE_ENV value of 'production' did not match any deployment config file names.
WARNING: See https://github.com/node-config/node-config/wiki/Strict-Mode
WARNING: No configurations found in configuration directory:/home/USER/AsyncAPI/config
WARNING: To disable this warning set SUPPRESS_NO_CONFIG_WARNING in the environment.
(node:9564) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
┌  AsyncAPI Generator
│
◓  Generation in progress. Keep calm and wait a bit[BABEL] Note: The code generator has deoptimised the styling of /home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/template/js/asyncapi-ui.min.js as it exceeds the max of 500KB.
◓  Generation in progress. Keep calm and wait a bitPDF is generating...
◐  Generation in progress. Keep calm and wait a bit.Error: net::ERR_FILE_NOT_FOUND at file:////home/USER/AsyncAPI/tmp_html_pdf/index.html
  at navigate (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/node_modules/puppeteer-core/src/cdp/Frame.ts:211:13)
  at Deferred.race (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/node_modules/puppeteer-core/src/util/Deferred.ts:49:14)
  at CdpFrame.goto (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/node_modules/puppeteer-core/src/cdp/Frame.ts:164:17)
at CdpPage.goto (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/node_modules/puppeteer-core/src/api/Page.ts:1773:12)
  at generate:after (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/html-template/hooks/99_generatePdf.js:22:7)
  at /home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/cli/node_modules/@asyncapi/generator/lib/generator.js:1021:14
  at async Promise.all (index 0)
  at Generator.executeAfterHook (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/cli/node_modules/@asyncapi/generator/lib/generator.js:368:5)
  at Generator.generate (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/cli/node_modules/@asyncapi/generator/lib/generator.js:197:5)
at Generator.generateFromString (/home/USER/.nvm/versions/node/v24.13.1/lib/node_modules/@asyncapi/cli/node_modules/@asyncapi/generator/lib/generator.js:452:12)
  ◇  Check out your shiny new generated files at ./tmp_html_pdf # needs to be aborted with Ctrl-C
$ ls tmp_html_pdf
css  js  foo

Expected behavior

Two entities:

• foo.html (+ css and js folders without singleFile)
• foo.pdf

Screenshots

n/a

How to Reproduce

asyncapi generate fromTemplate foo.yaml @asyncapi/html-template --output ./tmp_html_pdf --param pdf=true outFilename=foo

🖥️ Device Information [optional]

• Operating System (OS): WSL2

  cat /etc/lsb-release
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=24.04
  DISTRIB_CODENAME=noble
  DISTRIB_DESCRIPTION="Ubuntu 24.04.3 LTS"

👀 Have you checked for similar open issues?

• I checked and didn't find similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue ?

No, someone else can work on it

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