[Feat]: API to get all appilications

[ormig]

Is your feature request related to a problem? Please describe

No response

Describe the solution you'd like

https://github.com/Netcracker/qubership-envgene/blob/docs/envgene-ui/docs/analysis/colly-applications-api.md

? GET /api/v1/environments/{environmentId}/applications

Return list of all applications for particular environment and namespace

Parameters:

• environmentId (path)
• namespaceName (query)

Response:

- `<application-name-1>`
- `<application-name-N>`

Details:
read file /environments/<cluster-name>/<env-name>/Inventory/solution-descriptor/sd.yaml|yml

• if file is not exist => error in logs
• check yaml file first if not exist then check yml
• if there are no SD.applications or SD.applications[].version or SD.applications[].deployPostfix (at least in one application) => error in logs and full SD shouldn't put in cache
• if deployPostfix is not found in namespaceName => ignore element SD.applications during cache
• if for namespaceName there is no applications in deployPostfix => 404

Describe alternatives you've considered

No response

Additional information

No response