chore: prepare repo for open-sourcing (#53)

Strips kubectl-prof CLI plugin and internal CI workflows so this repo can be
published publicly under nudgebee. The agent and language-specific container
images remain — they are the artifacts called by Nudgebee (and other
orchestrators) to perform profiling against target pods.

Removed
- cmd/cli, internal/cli: the kubectl-prof CLI plugin tree
- .krew.yaml, plugins/, .github/workflows/do-krew.yml: krew distribution
- .goreleaser.yml: was only used to build the CLI binary
- .github/workflows/{dev-ci,dev-ci-test,prod-ci}.yml: pushed to private AWS
  ECR accounts and used internal self-hosted runners and registry
- sonar-project.properties: internal SonarQube config
- logger_demo.py: stray Hello-World commit

Renamed
- Go module path: github.com/josepdcs/kubectl-prof
              -> github.com/nudgebee/application-profiler
- Default branch references: master -> main

Rewrote
- Makefile: dropped CLI build/release targets and DockerHub pushes; image
  base is now ghcr.io/nudgebee/application-profiler-<lang>
- README.md: agent-only documentation, lists published GHCR images and
  documents the agent CLI flags Nudgebee invokes
- Dockerfiles: workdir + COPY paths updated for the new module path
- .github/workflows/code-verify.yml: runs on PRs and pushes targeting main

Added
- .github/workflows/release.yml: matrix build for 5 language images, pushes
  to ghcr.io/nudgebee/application-profiler-<lang> on main + v* tags
- .github/dependabot.yml: weekly Go, GitHub Actions, and Docker base-image
  updates
- CODE_OF_CONDUCT.md, SECURITY.md
- .github/ISSUE_TEMPLATE/{bug_report,feature_request}.md
- .github/pull_request_template.md
- CODEOWNERS now references nudgebee maintainers

Author: mayankpande88

.github/CODEOWNERS

@@ -3,4 +3,4 @@
 #
 # KEEP THIS FILE SORTED. Order is important. Last match takes precedence.
 
-* @josepdcs josepdcs@ext.inditex.com
+* @mayankpande88 @blue4209211

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,37 @@
+---
+name: Bug report
+about: Report a problem with the agent or images
+title: ''
+labels: bug
+assignees: ''
+---
+
+## Description
+
+A clear description of the issue.
+
+## Steps to reproduce
+
+1.
+2.
+3.
+
+## Expected behavior
+
+What you expected to happen.
+
+## Actual behavior
+
+What actually happened. Include agent logs (JSON output) if available.
+
+## Environment
+
+- Image and tag: `ghcr.io/nudgebee/application-profiler-<lang>:<tag>`
+- Kubernetes version:
+- Container runtime: containerd / cri-o
+- Target language and profiling tool:
+- Host OS / kernel:
+
+## Additional context
+
+Any other relevant details.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest a new capability or improvement
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+## Problem
+
+What problem are you trying to solve? Why does the current behavior fall short?
+
+## Proposed solution
+
+What would the agent do differently?
+
+## Alternatives considered
+
+Other approaches you've thought about.
+
+## Additional context
+
+Links to related issues, prior art, etc.

.github/dependabot.yml

@@ -0,0 +1,69 @@
+version: 2
+updates:
+  - package-ecosystem: gomod
+    directory: "/"
+    schedule:
+      interval: weekly
+    groups:
+      go_modules:
+        patterns:
+          - "*"
+    labels:
+      - dependencies
+      - go
+
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - github-actions
+
+  - package-ecosystem: docker
+    directory: "/docker/bpf"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker
+
+  - package-ecosystem: docker
+    directory: "/docker/jvm"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker
+
+  - package-ecosystem: docker
+    directory: "/docker/jvm/alpine"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker
+
+  - package-ecosystem: docker
+    directory: "/docker/perf"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker
+
+  - package-ecosystem: docker
+    directory: "/docker/python"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker
+
+  - package-ecosystem: docker
+    directory: "/docker/ruby"
+    schedule:
+      interval: weekly
+    labels:
+      - dependencies
+      - docker

.github/pull_request_template.md

@@ -0,0 +1,23 @@
+## Summary
+
+What does this PR change and why?
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Refactor
+- [ ] Documentation
+- [ ] CI / build
+
+## Test plan
+
+How was this validated? Include commands run and (where relevant) target
+languages / profiling tools exercised.
+
+## Checklist
+
+- [ ] `go build ./...` and `go test ./...` pass locally
+- [ ] Docs (README, flags) updated if behavior changed
+- [ ] No breaking changes to the agent's stdout JSON envelope, or change is
+      called out and coordinated with downstream orchestrators

.github/workflows/code-verify.yml

@@ -1,21 +1,19 @@
-
 name: Code Verify
 
 on:
   push:
-    branches-ignore: [main, bugfix/GH-19-krew-not-working ]
+    branches: [main]
   pull_request:
-    branches: ['*']
+    branches: [main]
 
 jobs:
-
   build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
           go-version: '1.23.4'