Fix Ansible 12 double-templating and Jinja2 spacing issues (#14836)

* Fix Ansible 12 double-templating and Jinja2 spacing issues

This PR fixes critical deployment issues and improves code consistency for Ansible 12 compatibility.

## Fixed Issues

### 1. Double-templating bug (Issue #14835)
Fixed 7 instances of invalid double-templating that breaks deployments:
- Changed `{{ lookup('file', '{{ var }}') }}` to `{{ lookup('file', var) }}`
- Affects Azure, DigitalOcean, GCE, Linode, and IPsec configurations
- Added comprehensive test to prevent regression

### 2. Jinja2 spacing inconsistencies
Fixed 33+ spacing issues for better code quality:
- Removed spaces between Jinja2 blocks: `}} {%` → `}}{%`
- Fixed operator spacing: `int -1` → `int - 1`
- Fixed filter spacing: `|b64encode` → `| b64encode`
- Consolidated multiline expressions to single lines

### 3. Test suite improvements
Enhanced boolean type checking test to be more targeted:
- Excludes external dependencies and CloudFormation templates
- Only tests Algo's actual codebase
- Verified with mutation testing
- Added comprehensive documentation

## Testing
- All 87 unit tests pass
- 0 Jinja2 spacing issues remaining (verified by ansible-lint)
- Ansible syntax checks pass for all playbooks
- Mutation testing confirms tests catch real issues

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Fix Python linting issue

- Remove unnecessary f-string prefix where no placeholders are used
- Fixes ruff F541 error

* Fix line length linting issues

- Break long lines to stay within 120 character limit
- Extract variables for better readability
- Fixes ruff E501 errors

---------

Co-authored-by: Claude <noreply@anthropic.com>

roles/cloud-cloudstack/tasks/main.yml

@@ -8,9 +8,7 @@
 - block:
     - set_fact:
         algo_region: >-
-          {% if region is defined %}{{ region }}
-          {%- elif _algo_region.user_input is defined and _algo_region.user_input | length > 0 %}{{ cs_zones[_algo_region.user_input | int -1 ]['name'] }}
-          {%- else %}{{ cs_zones[default_zone | int - 1]['name'] }}{% endif %}
+          {%- if region is defined -%}{{ region }}{%- elif _algo_region.user_input is defined and _algo_region.user_input | length > 0 -%}{{ cs_zones[_algo_region.user_input | int - 1]['name'] }}{%- else -%}{{ cs_zones[default_zone | int - 1]['name'] }}{%- endif -%}
 
     - name: Security group created
       cs_securitygroup:

roles/cloud-cloudstack/tasks/prompts.yml

@@ -54,8 +54,8 @@
     - name: Set the default zone
       set_fact:
         default_zone: >-
-          {% for z in cs_zones %}
-          {%- if z['name'] == "ch-gva-2" %}{{ loop.index }}{% endif %}
+          {%- for z in cs_zones -%}
+          {%- if z['name'] == "ch-gva-2" %}{{ loop.index }}{% endif -%}
           {%- endfor %}
 
     - pause: