fix(config): trim host values from env and flag parsing

[masterkain]

Motivation

• Host values provided via environment or CLI flags could retain leading/trailing whitespace which leads to exact-string mismatches when binding or matching origins.
• Normalizing host input prevents subtle runtime errors when comparing RuntimeConfig.Host against request origins or bind addresses.
• Add regression coverage to ensure host trimming behavior remains stable.

Description

• Trim WOOTTY_HOST by introducing normalizeHost and use it when constructing RuntimeConfig instead of accepting raw env values.
• Trim the --host flag argument during CLI parsing before assigning to the runtime configuration.
• Add tests TestParseRunConfigTrimsHostFromEnvironment and TestParseRunConfigTrimsHostFromFlag to apps/server/internal/config/config_test.go to cover both env and flag cases.
• Files changed: apps/server/internal/config/config.go and apps/server/internal/config/config_test.go.

Testing

• Ran the repository JS unit suite with pnpm test (Vitest) and the web tests completed successfully (note: environment Node version warning was observed).
• Ran Go unit tests for the server with cd apps/server && go test ./internal/config ./internal/server and they passed.
• New config tests specifically for host trimming executed and succeeded as part of the Go test run.

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Codex Task