Added header support in all modules

[sunil-lakshman]

• Enh
  • Per-module CMA headers: addHeader, addHeaderDict, and removeHeader on stack resources and query builders (stack shares one map; other modules copy-on-write). Backward compatible if unused.
• Test
  • Unit + sanity coverage for header APIs; minor sanity robustness (taxonomy 412, nested GF plan skip, entry update timeout).

[github-actions]

🔒 Security Scan Results

ℹ️ Note: Only vulnerabilities with available fixes (upgrades or patches) are counted toward thresholds.

Check Type	Count (with fixes)	Without fixes	Threshold	Result
🔴 Critical Severity	0	0	10	✅ Passed
🟠 High Severity	0	0	25	✅ Passed
🟡 Medium Severity	0	0	500	✅ Passed
🔵 Low Severity	0	0	1000	✅ Passed

⏱️ SLA Breach Summary

✅ No SLA breaches detected. All vulnerabilities are within acceptable time thresholds.

Severity	Breaches (with fixes)	Breaches (no fixes)	SLA Threshold (with/no fixes)	Status
🔴 Critical	0	0	15 / 30 days	✅ Passed
🟠 High	0	0	30 / 120 days	✅ Passed
🟡 Medium	0	0	90 / 365 days	✅ Passed
🔵 Low	0	0	180 / 365 days	✅ Passed

✅ BUILD PASSED - All security checks passed

[github-actions]

Coverage report for commit: 1074d19
File: coverage/clover.xml

Cover ┌─────────────────────────┐ Freq.
   0% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  10% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  20% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  30% │ ██░░░░░░░░░░░░░░░░░░░░░ │  2.1%
  40% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  50% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  60% │ ░░░░░░░░░░░░░░░░░░░░░░░ │  0.0%
  70% │ █████░░░░░░░░░░░░░░░░░░ │  6.4%
  80% │ ███████████████████████ │ 36.2%
  90% │ ██████████████████░░░░░ │ 27.7%
 100% │ ██████████████████░░░░░ │ 27.7%
      └─────────────────────────┘
 *Legend:* █ = Current Distribution 

Summary - Lines: 82.79% | Methods: 95.85% | Branches: 65.99%

Files	Lines	Methods	Branches
lib
contentstack.js	100.00%	100.00%	100.00%
contentstackClient.js	83.02%	92.86%	69.49%
contentstackCollection.js	94.12%	100.00%	86.96%
entity.js	76.22%	100.00%	61.34%
lib/core
Util.js	77.68%	94.44%	61.65%
concurrency-queue.js	71.84%	72.22%	62.02%
contentstackError.js	100.00%	100.00%	100.00%
contentstackHTTPClient.js	83.05%	84.62%	75.00%
errorMessages.js	100.00%	100.00%	71.43%
moduleHeaderSupport.js	89.71%	100.00%	83.67%
oauthHandler.js	90.85%	100.00%	67.14%
pkceStorage.js	100.00%	100.00%	94.12%
lib/organization
index.js	72.73%	100.00%	48.68%
lib/organization/teams
index.js	89.47%	100.00%	61.11%
lib/organization/teams/stackRoleMappings
index.js	78.57%	100.00%	47.50%
lib/organization/teams/teamUsers
index.js	100.00%	100.00%	87.50%
lib/query
index.js	75.51%	100.00%	59.62%
lib/stack/asset/folders
index.js	100.00%	100.00%	94.74%
lib/stack/asset
index.js	86.75%	100.00%	72.63%
lib/stack/auditlog
index.js	92.31%	100.00%	70.59%
lib/stack/branch
compare.js	70.83%	100.00%	60.00%
index.js	91.49%	100.00%	68.89%
mergeQueue.js	85.71%	100.00%	63.16%
lib/stack/branchAlias
index.js	80.65%	100.00%	59.52%
lib/stack/contentType/entry
index.js	83.33%	100.00%	57.84%
lib/stack/contentType/entry/variants
index.js	80.65%	100.00%	60.00%
lib/stack/contentType
index.js	85.29%	100.00%	68.00%
lib/stack/deliveryToken
index.js	95.65%	80.00%	85.71%
lib/stack/deliveryToken/previewToken
index.js	25.00%	25.00%	6.67%
lib/stack/environment
index.js	100.00%	100.00%	95.00%
lib/stack/extension
index.js	94.12%	100.00%	81.40%
lib/stack/globalField
index.js	92.11%	100.00%	81.13%
lib/stack
index.js	81.31%	92.86%	68.27%
lib/stack/label
index.js	100.00%	100.00%	93.75%
lib/stack/locale
index.js	100.00%	100.00%	95.00%
lib/stack/managementToken
index.js	100.00%	100.00%	90.00%
lib/stack/release
index.js	80.70%	100.00%	59.02%
lib/stack/roles
index.js	100.00%	100.00%	94.44%
lib/stack/taxonomy
index.js	79.52%	100.00%	53.40%
lib/stack/taxonomy/terms
index.js	79.31%	100.00%	56.96%
lib/stack/variantGroup
index.js	82.50%	100.00%	58.14%
lib/stack/variantGroup/variants
index.js	78.57%	100.00%	52.94%
lib/stack/variants
index.js	77.50%	100.00%	51.06%
lib/stack/webhook
index.js	85.00%	100.00%	64.29%
lib/stack/workflow
index.js	84.21%	100.00%	66.67%
lib/stack/workflow/publishRules
index.js	100.00%	100.00%	95.00%
lib/user
index.js	91.43%	100.00%	73.08%

_{🤖 comment via lucassabreu/comment-coverage-clover}

[harshitha-cstk]

LGTM